问题

There are so many different kinds of phones and I don’t know _________.
A:what to buy
B:which one to buy
C:how to buy
D:where to buy;
B:which one to buy
C:how to buy
D:where to buy;
正确答案是:
同类题型
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The early pioneers had to many hardships to settle on the new land.
It would seem to be a general truth__________ nothing is as straightforward as it at first seems
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