Wemustdoeverythingwecan
來源:國語幫 2.01W
問題詳情:
We must do everything we can ____ waste water from running into rivers.
A. keep B. kept C. to keep D. keeping
【回答】
C
知識點:非謂語動詞
題型:選擇題
問題詳情:
We must do everything we can ____ waste water from running into rivers.
A. keep B. kept C. to keep D. keeping
【回答】
C
知識點:非謂語動詞
題型:選擇題