问题
选择题
Lots of rescue workers were working around the clock, supplies to Yushu, Qinghai Province after the earthquacke.
A．sending
B．to send
C．having sent
D．to have sent
答案
答案：A
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Lots of rescue workers were working around the clock, supplies to Yushu, Qinghai Province after the earthquacke.
A．sending
B．to send
C．having sent
D．to have sent
答案：A