–I wonder how much you charge for your service. --The first two are free____ the third costs $30.
#32721
A
before
B
as
C
when
D
while
推荐题目
Contemporary English is quite different from Old English. There has never been a year the language was not changing.
#33609
A
that
B
when
C
for
D
until
Ray is a new graduate, and it seems that he has difficulty in dealing with ________ problems arise.
#30807
A
whichever
B
whenever
C
whatever
D
wherever
I have received an offer from a German university, but I’m still hesitating ______ I should accept it.
#30933
A
how
B
why
C
that
D
whether
________ the fire breaks out,he is the first to arrive at the scene.
#30229
A
Every time when
B
Moment
C
No matter whenever
D
Every time