Question

9. ―Look! Someone     the floor.

―Well,it wasn't me. I went shopping just now.

A. had swept    B. has swept

C. was sweeping  D. is sweeping

Answer 1

9.    B考査动词的时态。句意："看！有人已扫完了地。""哦，不是我扫的。我刚才去购物了。"从时间点just now和动词wasn't, went可知扫地动作巳结束。根据look可知扫地的动作对现在有影响，要用现在完成时，故选B。