A foreign language like English is difficult to learn, so you ____________ work too hard.
#88307
A
can’t
B
must
C
shouldn’t
D
ought to
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He ________ all his aims. But his efforts in the past few years have been praise-worthy.
#86843
A
could have achieved
B
wouldn’t have achieved
C
must have achieved
D
may not have achieved
--- I stayed at a hotel while in New York .--- Oh, did you? You ____ with Barbara.
#88941
A
could have stayed
B
could stay
C
would stay
D
must have stayed 