—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
-Last night someone broke into our house.-Oh, dear! Anything       ?
#39788
A
was taken away
B
took away
C
is taken away
D
has taken away
 Listen! My sister_______ the piano in her room.
#39812
A
play
B
is playing
C
plays
D
Playing
---Can I help you?---Yes, I bought this radio here yesterday, but it _____________.
#36731
A
didn’t work
B
won’t work
C
can’t work
D
doesn’t work