— Mary’s sister looks very beautiful now.— But she was very ugly before she tidied up her appearance(整容). You _________ believe it!
#87061
A
shouldn’t
B
mustn’t
C
wouldn’t
D
might not
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----I failed again. I wish I _________ harder.---But you _________.
#86994
A
had worked; hadn’t
B
worked; didn’t
C
worked; don’t 
D
had worked; didn’t
I wonder if this is the computer you want______ .
#87068
A
to have repaired
B
to have it repaired
C
it to be repaired
D
to repair it
You _________ be right, but I don’t think you are.
#89118
A
can
B
could
C
must
D
should