—How long has this bookstore been in business? —_______ 1996.
#101613
A
After
B
In
C
From
D
Since
推荐题目
I would have come sooner but I ________ that they were waiting. 
#104791
A
haven’t known
B
hadn’t known
C
don’t know
D
didn’t know
The fields where crops used to be grown ________ for building now.
#101118
A
have used
B
have been used
C
are being used
D
are used
 He ______ at the meeting, but his heart attack prevented him.
#104277
A
will speak
B
is going to speak
C
had to speak
D
was going to speak