--- I’m sorry, but there is no smoking on this flight． --- Oh, I _________ that．Sorry, I won’t again．
#103054
A
don’t know
B
didn’t know
C
won’t know
D
haven’t known
推荐题目
The result of the experiment was very good, ___________ we hadn’t expected.
#103395
A
as
B
that
C
which
D
what
—How long _______ at this job? —Since 1990.
#99296
A
were you employed
B
have you been employed
C
had you been employed
D
will you be employed
The fans ______ to see the pop singer the whole afternoon, and they won’t leave until he turns up.
#99793
A
have been waiting
B
waited
C
had waited
D
would have waited
John and I＿＿friends for eight years. We first got to know each other at a Christmas party. But we＿＿ each other a couple of times before that.
#104423
A
had been； have met
B
have been； have met
C
had been； had met
D
have been； had met