The results of the medical checkup suggested that my father ______ in poor health, so the doctor suggested that he ______ smoking and take more exercise.
#87523
A
was; gave up
B
be; should give up
C
should be; gave up
D
was; give up
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He is an hour late by now.He         last night.
#87971
A
must stay up
B
should stay up
C
must have stayed up
D
should have stayed up
___ for the fact that you were lazy, you could have finished the assignment by now. 
#87795
A
It were not
B
Weren’t it
C
Had it not been
D
Had not been
 But for friction (摩擦力), people ______ neither walk, nor even stand up.
#86752
A
can
B
were able to
C
will be able to
D
could