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There are so many kinds of pens in the shop ,I can’t decide ______.
#50047
A
when to buy
B
where to buy
C
what to buy
D
which to buy
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Smiling can make people        happy, lively and warm.
#50751
A
to feel
B
feels
C
feel
D
felt
 I would rather die than ______.
#49197
A
to give in
B
gave in
C
giving in
D
give in
--- What should I do, doctor? ---         healthy,  you should take more exercise.
#50593
A
Keep
B
To keep
C
Keeping
D
To keep out
Every day we spend half an hour      morning exercise。
#49065
A
do
B
to do
C
for doing
D
doing
We’ll do what we can ______ English well this term.
#50953
A
study
B
to study
C
be studied
D
be studying