25. – Tom, it's too late. Our son ________ be back.– Don't be anxious. I dare say he ________ have some extra work to do.
#88895
A
can; must
B
will; might
C
should; must
D
must; may
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If the wound ______ become infected, do not hesitate to call me.
#87149
A
shall
B
must
C
should
D
would
If we had taken such effective measures much earlier, the river ________ so seriously now.
#86813
A
is not polluted
B
would not be polluted
C
had not been polluted
D
would not have been polluted
— Turn off the TV, Jack. ____ your homework now?— Mum, just ten more minutes, please.
#90090
A
Should you be doing
B
Shouldn’t you be doing
C
Couldn’t you be doing
D
Will you be doing
It ____ last night, for the ground is wet now.
#88954
A
might not have rained
B
must have rained
C
couldn't have rained
D
rained