——Who is knocking at the door?——It ______ Mr. Black, because he_______Washington.
#54792
A
can't be;has gone to
B
may be;has been to
C
must’t be;has gone to
D
may be;went
推荐题目
 He has lost his pen. He is _______  it everywhere.
#59160
A
looking after
B
looking out
C
look like
D
looking for
---- I would rather _____ hiking than _____ swimming.
#52923
A
to go , to go
B
going, going
C
go ,go
D
go, going
I       afraid of the dark, but now I don’t.
#63039
A
use to
B
used to
C
use to be
D
used to be
Let’s discuss the problem after school.
#58616
A
talk to
B
talk about
C
know about
D
think about