--Look! Someone ________ the floor.--Well, it wasn’t me. I went shopping just now. 
#100635
A
had swept
B
has swept
C
was sweeping
D
is sweeping
推荐题目
- How could I thank you enough? - Don't mention it. Any other man_____that.
#100289
A
would do
B
will do
C
would have done
D
must have done
Only a small percentage of the graduates ___________________ a job. 
#100121
A
have been offered
B
have offered
C
has been offered
D
has offered