— Do you still remember when we went to Nanjing?    — I can't remember now but ________sometime last summer?
#89645
A
might it be
B
could it be
C
could it have been
D
should it have been
推荐题目
Thank you for giving me a hand. I ______ in the experiment without your valuable help. 
#89288
A
have failed
B
will fail
C
would have failed
D
must have failed
But for the help of my English teacher, I _______ the first prize in the English Writing Competition.
#87749
A
would not win
B
could not win
C
could have won
D
would not have won
If penicillin _____________ available, many people ______________ from sickness.
#86943
A
weren’t , would have died
B
shouldn’t be, would die
C
hadn’t been, would have died
D
is, will die