Many soldiers are reported to the drought area to help the local people carry water in t

问题补充：

Many soldiers are reported to the drought area to help the local people carry water in the past few weeks.

A. to send

B. to be sent

C. to have been sent

D. to have been sending

答案：

A. to send

B. to be sent

(答案→)C. to have been sent

D. to have been sending

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