To be on the safe side, we should fill up the tank now, because we ______ run out of gas on the way.
#89113
A
could
B
might
C
would
D
must
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We suggest that more measures _________ to solve the problem of overpopulation.
#87290
A
will be taken
B
be taken
C
can be taken
D
must be taken
Had they known what was coming next, they second thoughts.
#86845
A
may have
B
could have
C
must have had
D
might have had
He spoke as though he________ anything of the world. --Really?
#86457
A
knew
B
had known
C
knows
D
has know
— I suppose I’ll have to ask someone else to see me off .— I’m afraid so . I would see you off if I ,but I .
#89704
A
would ; won’t
B
could ; can’t
C
might ; needn’t
D
should ; mustn’t