Grammar – Unit 15 Modal Verbs of Possibility

Secondary 1 – Grammar – Unit 15
Modal Verbs of Possibility

Name _________________ Date ___________

1. Rewrite using the word in brackets to give the same meaning.

1. Alaa will possibly lend me his CD player. (might)

___________________

2. I can’t find my car keys. I’m sure I forgot them at home. (must)

____________________

3. Don’t turn off the computer yet. It’s possible that someone is still using it. (might)

______________

4. It’s impossible for Mona to be walking in this weather. (can’t)

_______________

5. I am certain that Ali is ill. He has a high fever. (must)

_________________

2. Correct the underlined mistakes.

Yesterday Karim woke up late and rushed quickly to his office. When he arrived there, he discovered that he didn’t have the keys to his desk. He thought that he (1) must have forgot them at home. He called his wife at home but there was no answer. He thought she (2) might have go shopping. So he called her on her mobile phone several times but she didn’t answer. He thought, “She (3) can’t have leave it at home because she needs it all the time.” He guessed she (4) might has been in a noisy place and that’s why she didn’t hear it.

He needed his keys, so he would have to go get them. When he returned home, he didn’t find them there but he did find his wife’s mobile phone! He thought that his wife (5) must took the keys by mistake and she (6) couldn’t intended to leave the phone at home. She (7) must have forgot it at home. He didn’t return to his office immediately. He waited until his wife returned to see what exactly had happened.

1. ____________________ 2. ____________________

3. ____________________ 4. ____________________

5. ____________________ 6. ____________________

7. ____________________

3. Find the mistakes and correct them.

There is a parcel outside the house. The postman must have left it at the door. He isn’t supposed to do so. Someone might took it if he had seen it. Maybe the postman rang the bell and when there was no answer, he left it. Certainly, we must be out when he came.

(You will find two mistakes.)

________________

________________

4. Match the phrases and rewrite each sentence below.

A	B
1. It’s very late. You shouldn’t phone Khaled.	a. He might get in trouble.
2. Tamer forgot his homework again.	b. He can’t be at the mall.
3. Ahmed is the only one who knew about your success.	c. He must be in bed by now.
4. Hany is afraid of open spaces.	d. He can’t be forgetful.
5. Hany is going to therapy for his phobia.	e. He must have sent you that present.
	f. He might have success.

1. _______________

2. _____________

3. _____________

4. _____________

5. _____________

5. Read the paragraph. Underline the correct word in parentheses.

I think that people who do parachute jumping (must be - can’t be - might be) crazy! If someone tells me that he’ll do a parachute jump, then I think he (must be - can’t be - might be) serious. It’s a very dangerous thing that needs a lot of training. Your life is in danger and anything (might – must - might have) go wrong. You (might be - must be - should be) seriously injured or even killed.

My brother thinks that it (must be - can’t be - might have been) a wonderful experience to look down from the sky and see everything beneath you very tiny. He also believes that our lives (must be - can’t be - should be) much fun if we never take risks!

Secondary 1 – Grammar – Unit 15
Modal Verbs of Possibility
ANSWERS

1.

1. Alaa might lend me his CD player.

2. I can’t find my car keys. I must have forgotten them at home.

3. Don’t turn off the computer yet. Someone might still be using it.

4. Mona can’t be walking in this weather.

5. Ali must be ill. He has a high fever.

2.

Yesterday Karim woke up late and rushed quickly to his office. When he arrived there, he discovered that he didn’t have the keys to his desk. He thought that he must have forgotten them at home. He called his wife at home but there was no answer. He thought she might have gone shopping. So he called her on her mobile phone several times but she didn’t answer. He thought, “She can’t have left it at home because she needs it all the time.” He guessed she might have been in a noisy place and that’s why she didn’t hear it.

He needed his keys, so he would have to go get them. When he returned home, he didn’t find them there but he did find his wife’s mobile phone! He thought that his wife must have taken the keys by mistake and she couldn’t have intended to leave the phone at home. She must have forgotten it at home. He didn’t return to his office immediately. He waited until his wife returned to see what exactly had happened.

3.

There is a parcel outside the house. The postman must have left it at the door. He isn’t supposed to do so. Someone might took it if he had seen it. Maybe the postman rang the bell and when there was no answer, he left it. Certainly, we must be out when he came.

Someone might have taken it if he had seen it.

Certainly, we must have been out when he came.

4.

1-c It’s very late. You shouldn’t phone Khaled. He must be in bed by now.

2-a Tamer forgot his homework again. He might get in trouble.

3-e Ahmed is the only one who knew about your success. He must have sent you that present.

4-b Hany is afraid of open spaces. He can’t be at the mall.

5-f Hany is going to therapy for his phobia. He might have success.

5.

I think that people who do parachute jumping must be crazy! If someone tells me that he’ll do a parachute jump, then I think he can’t be serious. It’s a very dangerous thing that needs a lot of training. Your life is in danger and anything might go wrong. You might be seriously injured or even killed.

My brother thinks that it must be a wonderful experience to look down from the sky and see everything beneath you very tiny. He also believes that our lives can’t be much fun if we never take risks!

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