A. for go
B. to going
C. to go
D. of go

l. It's important for us _______ (exercise) very often.
2. I hope you're _______ (enjoy) my school.
3. I'm feeling much ______  (good) now.
4. ______ (eat) healthy food is good for us.
5. ______ (not eat) junk food.

1. It takes Lily an hour _____ (finish) her homework.
2. We enjoyed _____ (our) on Sunday.
3. I like to _____ (ride) my bike on the weekend.
4. When it rains, she _____ (take) a taxi.
5. What _____ he _____ (think) the transportation in Beijing?
6. How do you ______ (get) school in the morning?
7. It _____ (take) me an hour to watch TV yesterday.

A. costs; to do
B. spent; doing
C. took; to do
D. takes; to do

A. to; by
B. to; for
C. of; in
D. for; on

l.  It takes my mother an hour _____ (listen) to music.
2. Emily _____ (not take) the train to school from Monday to Friday.
3. They enjoy _____ (their) on Sundays.
4. There are many tall buildings now in many _____ (city).
5. Is Caral _____ (ride) his bike?
6. He has two ways of _____ (get) to school.
7. In summer people often go swimming in ______ (river).
8. We need _____ (study) again after school.
9.  Listen! A small number of students _____ (talk) in the classroom.
10. They usually ride their _____ (bike) to work.

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

1. Do you want _____  (go) _____ (swim) with us Saturday afternoon?
2. Would you like _____ (come) to my office _____  (discuss) the report?
3. I hope they can have _____ (funny) at the party.
4. _____ (who) are you going to have dinner with?
5. What about _____ (have) a party?
6. Thanks for your _____ (invite).
7. We both enjoy_____ (go) to the parties.
8. They _____ (visit) Uncle Liu tomorrow.

[     ]

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

A. Keep
B. Keeping
C. To keep
D. Having Kept