--- May I go and play with Dick this afternoon, Mum?--- No, you can’t go out _____ your work is being done.
#31631
A
before
B
until
C
as
D
the moment
推荐题目
It is not always easy for the public to see _______ use a new invention can be of to human life.
#31304
A
whose
B
which
C
that
D
what
I will give you my friend’s home address, _____I can be reached most evenings.
#33919
A
Which
B
when
C
whom
D
where
There’s no way of knowing why one man makes an important discovery ________ another man, also intelligent, fails.
#31181
A
since
B
if
C
as
D
while
Three years had gone by ____ he came to realize what a fool he was not to listen to the teachers !
#34381
A
until
B
since
C
before
D
after