The retired man donated most of his savings to the school damaged by the earthquake in Yushu ,________the students to return to their classrooms.

Lots of rescue workers were working around the clock, ________ supplies to Yushu, Qinghai province after the earthquake.

Lot's of rescue workers were working around the clock, ____supplies to Yushu after the earthquake. A: sending B: to send C: having sent D: to have sent

Lots of rescue workers were working around the clock, ____ supplies to Yushu, Qinghai Province after the earthquake. A: to have been sent B: sending C: having sent D: to have sent

5. Lots of rescue workers were working around the clock, supplies to Yushu, Qinghai province after the earthquake.... A: A. sending B: B. to send C: C. having sent D: D. to have sent