问题

All the books donated by the students from urban schools are said ________ to the students in the earthquake-stricken areas the other day.

A:to have been sent
B:being sent
C:having been sent
D:to be sent;

正确答案是：

同类题型

While cleaning the room yesterday, I _______ an old photo of my mother.

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How far can you run without stopping—_________. I’ve never tried.