I really don't know how to thank you, but for your help, I ________ my lost necklace.
#86411
A
couldn't have found
B
mustn't have found
C
couldn't find
D
wouldn't find
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She didn't answer the phone.She ___ be asleep.
#88930
A
couldn't
B
mustn’t
C
might
D
had to
It is very important that you _______ for this examination.
#87091
A
would get yourself prepared
B
must get yourself preparing
C
should get yourself prepare
D
could get yourself prepared