—Hello, can I speak to Mr. Smith?—I’m sorry, but it is 3 weeks _____ he worked here.
#31785
A
before
B
since
C
after
D
while
推荐题目
_______ that we can't get the necessary equipment, we will have to give up theexperiment.
#29982
A
To assume
B
Assume
C
Assumed
D
Assuming
----Will you tell the secret to the teacher? --- No! ____ asked to.
#34001
A
Even if
B
Even as
C
Even so
D
If
Milk will turn sour soon on hot days ______ it is stored in the refrigerator．
#30135
A
since
B
until
C
because
D
unless
They had kept working for several weeks everything was in order.
#31661
A
before
B
after
C
since
D
unless
I haven’t read the book for __________ long _______I’ve forgotten what it is about.
#33742
A
such; that
B
so; as
C
so; that
D
such; as