The zoo keepers is worried because the number of visitors  __       smaller and smaller.
#103375
A
become
B
became
C
is becoming
D
have become
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I _____ on a sofa because my grandparents have come for the weekend.
#104156
A
slept
B
was sleeping
C
have slept
D
am sleeping
The Diaoyu Islands _____ in Chinese maps since the 14th and 15th centuries.
#100503
A
have been included
B
had been included
C
were included
D
are included
The task _______ in an hour. Then we can go home and have a good rest.
#100141
A
was finished
B
will be finished
C
has been finished
D
can’t finish