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Exercise 5: Choose the best clause to complete each sentence.
1. I can't do my homework
A. if I don't have my glasses.
B. I watch a funny movie.
,he usually listens to music.
2.
A. If George makes a lot of noise
B. When George cleans his house
3. When Laura watches a movie,
A. she likes to eat popcorn.
B. when she's sad.
4. You can end up brain damaged
A. if you don't wear a crash helmet when driving a motorbike.
B. when you don't exceed speed limit.
5. My dog bites
A. if they scratch you.
B. if you go near its food when it's eating.
6. If you press this switch,
A. the DVD player comes on.
B. the machine stopped.
7. I take some aspirin and rest
A. when I am happy
B. when I've got a headache.
8. If you cross each time zone on the International Date Line,
A. the time changes
B. nothing changes