____ be careful when crossing the street!
#85481
A
Must
B
Should
C
Ought to
D
Do
推荐题目
It was ______ the second-hand car that the mechanic spent the whole afternoon in the factory.
#85287
A
in repair
B
repaired
C
repairing
D
to repair
I really don’t know ___ ___I kept the secret papers.
#85213
A
where was it
B
it was where that
C
where it was that
D
where was it that
It was not until all the fish died in the river_____the villagers realized the serious pollution.
#85154
A
where
B
that
C
what
D
which
It was after he got what he had wanted ________he realized it was not so important .
#85077
A
that
B
when
C
since
D
as