—How clean the room is! —Yes，I am sure that someone _______ it.
#36374
A
cleans
B
cleaned
C
has cleaned
D
had cleaned
推荐题目
—I called you last night, but no one answered me.—Oh, I________ a shower.
#36468
A
have taken
B
was taking
C
took
D
will take
—Mary with her parents often ________to the zoo on Sundays. What about you?—I don’t often go there. But sometimes I go to see the animals on Saturdays.
#40477
A
go
B
goes
C
going
D
to go
The second season of A Bite of China ________ for a month. It turns out to be the most popular documentary.
#36273
A
began
B
has begun
C
has been on
D
had begun