UNIT 9 WHEN and IF sentences exercises

UNIT 9 Exercises

9.1  All the sentences in this exercise are about the future. Put the verbs into the correct form: the
future will/won't or the simple present (I do).

Example: When I___see___(see) Tom tonight,___I'll invite___(invite) him to our party.

1. Before you____________________(leave), don't forget to shut the windows.

2. I____________________(call) you as soon as I_____________________(arrive) in Tokyo.

3. Please don't touch anything before the police______________________(come).

4. Everyone____________________(be) very surprised if he____________________(pass) the exam.

5. When you_____________________(see) Brian again, you_____________________(not/recognize) him.

6. We____________________(not/start) dinner until Karen______________________(arrive).

7. _____________________(you/be) lonely without me while I____________________(be) away?

8. If I____________________(need) any help, I___________________(ask) you.

9. Come on! Hurry up! Ann___________________(be) annoyed if we___________________(be) late.

9.2  Make one sentence from two sentences.

Example: You are going to leave soon. You must visit the museum before that.
__you must visit the museum__before_you leave.

1. I'll find somewhere to live. Then I'll give you my address.
I_________________________________when_______________________________

2. It's going to start raining. Let's go out before that.
Let's___________________________before_______________________________

3. I'm going to do the shopping. Then I'll come straight home
_____________________________________after_____________________________

4. You'll be in Washington next month. You must come and see me then.
_____________________________________________when_________________________________

5. I'm going to finish reading this book. Then I'll get the dinner ready.
______________________________________________when______________________________

6. We'll make our decision. Then we'll let you know.
________________________________as soon as___________________________

9.3  Fill in when or if.

Example:  If _it rains this evening, I won't go out.

1. I'm sorry you've decided to go away. I'll be very sad_________you leave.

2. Tom might call this evening.   __________he does, can you take a message?

3. I think he'll get the job. I'll be very surprised _________ he doesn't get it.

4. I hope to be there by 10:30.  But  _________ I'm not there, don't wait for me.

5. I'm going shopping. __________ you want anything, I can get it for you. 

6. I think I'll go home now. I'm feeling very tired. I think I'll go right to bed ________ I get home.

7. I'm going away for a few days. I'll call you _________ I get back.

8. I want you to come to the party but __________ you don't want to come, you don't have to.