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A. to leave
B. going back
C. travel
D. not start out

A. to go
B. going
C. goes
D. will go

A. learn
B. to learn
C. learns
D. learned

1. There used to ______ (be) a cinema here, didn't there?
2. I'm still afraid of ______ (go) out alone at night.
3. The trees should ______ (water) very often.
4. The Internet makes our life ______ (easy) than ever before.
5. Mary wants to get her ears ______ (pierce).
6. Doing sports is good for your _______ (healthy).
7. He has been ______ (die) for five years.
8. The boy lay on the ground and soon fell ______. (sleep)
9. The singer performed ______. (beautiful)
10. ______ (lucky), he failed in the English exam.

A. take care
B. take care of
C. taking care of
D. taking care

1. I can't choose which pair of jeans _______ (buy). They both look good on me.
2. Why do you look _______  (sleep)?
3. Everyone needs to have at least eight _______ (hour) sleep a night.
4. But we do think that our son needs to be _______ (real).
5. My parents have always taught me the _______  (important) of working hard.
6. Children shouldn't be allowed _______  loudly in class. (shout).
7. He should stop _______  (wear) that silly sweater.
8. It's probably a good idea for parents _______  (allow) teenagers to study in groups.
9. Do you think children should _______  (allow) to play computer games..
10. At our school, we sometimes have a special day _______  (help) others.

A. do, doing
B. to do, to do
C. to do, doing
D. doing, to do

A. study
B. to study
C. of study
D. for studying

A. to build; on
B. building; on
C. to build; in
D. build; in

A. get
B. to get
C. gets
D. getting