Although ______ for many years, the two old sisters recognized each other at once.
#5021
A
having been separated
B
being separated
C
having separated
D
had been separated
推荐题目
I thought Jim would say something about his school report, but he ______ it. 
#4948
A
doesn’t mention
B
hadn’t mentioned
C
didn’t mention
D
hasn’t mentioned
Edward, you play so well. But I ______ you played the piano. 
#5038
A
didn’t know
B
hadn’t known
C
don’t know
D
haven’t known
Don’t forget to bring a dictionary next class. ___. I didn’t catch what you said.
#4677
A
Never mind
B
I beg your pardon
C
That’s right
D
I’m not sure