The soldiers have devoted s11 their time and effort to those trappedunder the fallen build

发布时间：2020-08-16 12:42:41

The soldiers have devoted s11 their time and effort to       those trapped
under the fallen buildings．
A. save
B. have saved
C. be saving
D. saving

网友回答

A. save
B. have saved
C. be saving
(答案→)D. saving
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