John promised his doctor he _____ not smoke and he has never smoked ever since.
#90470
A
might
B
should
C
could
D
would
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As the day was fine ,I made the suggestion _______ for  a walk in the park .
#87038
A
we go
B
we will go
C
should we go
D
that we go
He commanded that the students ______the classroom before he returned.
#86770
A
didn’t leave
B
wouldn’t leave
C
not leave
D
couldn’t leave
 It was Mr. Zhang that helped us out of the trouble. Without his help, we ______ it so easily.
#86786
A
can’t manage
B
mustn’t have managed
C
couldn’t have managed
D
couldn’t manage