--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
– Where are you working now?– In Chongqing. But I _____ in Shanghai for 5 years. 
#100056
A
worked
B
had worked
C
have worked
D
had been working
 Hurry up! Mark and Carl  us.
#100605
A
expect
B
are expecting
C
have expected
D
will expect
What shall human beings do if oil        sometime in the future?
#101364
A
will run out
B
runs out of
C
runs out
D
will be run out