问题

Lots of rescue workers were working around the clock, _____ supplies to Yushu, Qinghai Province after the earthquake. [ ]
A: sending
B: to send
C: having sent
D: to have sent
B: to send
C: having sent
D: to have sent
正确答案是:
同类题型
Next week there will be a basketball match between the ________ and the ________of our school.
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It rained heavily in the south,_____ serious flooding in several provinces. [ ]
a ___________singer until the age of 40,when he turned professional.
What sport do you like best?— Springboard diving (跳板跳水). _____ to dive into water from a high board!