“Show me your permit, please.” “Oh, it’s not in my pocket. It ______.”
#89543
A
might fall out
B
could fall out
C
should have fallen out
D
must have fallen out
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Messages ______ be changed from sound into electricity before they ______ be sent by radio.
#90077
A
must; will
B
have to; can
C
can; must
D
need; may
— But for your timely warning, we _____ into great trouble.— Well, you know we’re friends.
#86692
A
would get
B
must have got
C
would have got
D
can’t have got
This computer is of good quality. If it ___________ break down within the first year, we would repair it at our expense.
#87143
A
would
B
could
C
should
D
might
I ______ Peter with his work, but I had a lot of things to do myself.
#86588
A
must have helped
B
should have helped
C
needn’t have helped
D
can’t have helped
—— I didn’t see her yesterday. —— Oh, but you ＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿.
#89958
A
must have
B
ought to
C
should have
D
cannot have