There are so many kinds of Mp3 in the shop. We can’t decide ________ . 
#63538
A
what to buy
B
to buy what
C
which to buy
D
to buy which
推荐题目
 –David has made great progress recently.     – ______, and ______.
#52776
A
So he has; so you have
B
So has he; so you have
C
So he has; so have you
D
So has he; so have you
They promised ________ out more at home.
#61899
A
to help
B
help
C
helping
D
helped