—Look! Someone ________ the floor.—Well, it wasn't me. I went shopping just now.
#63763
A
had swept
B
has swept
C
was sweeping
D
is sweeping
推荐题目
In the last few years thousands of films ____ all over the world.
#63784
A
have produced
B
have been produced
C
are producing
D
are being produced
Barrack Obama __________ President of the United States since 2010.
#63757
A
became a
B
has become a
C
has turned
D
has been
Because of the bad weather, my mother ____ and lay in bed. She ______ for a week. 
#63793
A
has been ill; was ill
B
fell ill; has fallen ill
C
fell ill; has been ill
D
fell ill; is ill
I wonder why Jenny ____ us recently. We should have heard from her by now. 
#63792
A
hasn’t written
B
doesn’t write
C
won’t write
D
hadn’t written