--I failed again. I wish I ____harder.----But you _____.
#102321
A
had worked; hadn’t
B
worked; don’t
C
had worked; didn’t
D
worked; didn’t
推荐题目
All possible means ___ been tried to stop the air______.
#103381
A
has, polluted
B
have, polluting
C
have, being polluted
D
has, being polluted
I'm sorry. I _____________ you__________ to me.
#104802
A
don't know; are speaking
B
don't know ;were speaking
C
didn't know; were speaking
D
didn't know; are speaking
With the rise of modern communication tools, handwritten letters ______ by emails. 
#100623
A
will replace
B
have replaced
C
are replaced
D
are being replaced