问题

I’msurprised more and more people________participate in the morning exercises inthe plaza now.—Morningis a time of day.

A:should
B:can
C:may
D:need

正确答案是：

同类题型

You’d better _____ his name, address and telephone number in your notebook before you forget them.

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Shall we go for a picnic next week–____________________.

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________ , I know it doesn’tmatter.