問題詳情:
—Why does the Lake smell terrible?
—Because large quantities of water_________.
A. have polluted B. is being polluted
C. has been polluted D. have been polluted
【回答】
D
知識點:現在完成時及其被動式
題型:選擇題
問題詳情:
—Why does the Lake smell terrible?
—Because large quantities of water_________.
A. have polluted B. is being polluted
C. has been polluted D. have been polluted
【回答】
D
知識點:現在完成時及其被動式
題型:選擇題