Such a good opportunity, once ______, might never come again.
#80541
A
lost
B
to lose
C
losing
D
loses
推荐题目
The parents didn't tolerate their kids' rudeness at the party, nor ______ themselves to be disobeyed.
#79749
A
they allowed
B
did they allow
C
didn't they allow
D
they didn't allow
No sooner ________ down on bed ________ the telephone rang.
#79584
A
had he lain; than
B
had he lied; when
C
did he lie; than
D
had he laid; before
Only when something gets lost _____________.
#83115
A
can you realize how important it is to you
B
how important you can realize it is to you
C
you can realize how important it is to you
D
can you realize how important is it to you
(2013·江苏，27)“Never for a second，”the boy says，“________that my father would come to my rescue.”
#80075
A
I doubted
B
do I doubt
C
I have doubted
D
did I doubt
(2013·皖南八校联考)________ here yesterday，he could have seen Jackie Chan.
#80125
A
If Bob has come
B
If Bob came
C
If Bob had come
D
If Bob should come