问题

Lots of rescue workers were working around the clock, _____ supplies to Yushu, Qinghai province after theearthquake.[ ]

A: sending
B: to send
C: having sent
D: to have sent

正确答案是：

同类题型

Jenny suggested our going on an outing to the countryside next weekend, but the rest didn’t sound very _________ about the idea.

____make she different from the othe rstudents? —Honesty,Ithink.

Mr. Smith, can you show us how to do it again _______ Lily _______ I know the answer to the question.— Sure. It’s really a difficult question.

We didn’t learn __________in this lesson.

What happened, Lucy Someone me ________ the back .