There are so many kinds of MP3 in the shop. We can’t decide  ______.
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A
what to buy
B
to buy what
C
which to buy
D
to buy which
推荐题目
It is important for us ________English well.
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A
to learn
B
learning
C
learns
D
learned
We must hurry up. There are few minutes _______.
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A
to leave
B
leaving
C
left
D
leave
Most students hope _______well in their study.
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A
doing
B
do
C
to do
D
does
 Lucy decided _____ a new computer. 
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A
buy
B
to buy
C
buying
D
bought