Water ____ be changed into vapour but it ____ be heated to its boiling point .
#89755
A
may ; can
B
can ; must
C
may ; needn''t
D
must ; may
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. Mary _____ be in London because I saw her in town just now.
#88099
A
mustn’t
B
isn’t able to
C
needn’t
D
can’t
—Peter didn’t come to the meeting this morning. — I _______ him yesterday, but I was too busy and forgot it.
#87860
A
should have told
B
should tell
C
had to tell
D
had told
Without electricity human life _____ quite different today.
#87207
A
is
B
will be
C
would have been
D
would be
If only I _______ more confidence in the English speech contest held last week!
#87322
A
would have
B
had
C
had had
D
have
—Why didn't you answer my phone when I phoned you at about 11 p. m. yesterday? —I ___________and failed to hear the phone.
#89324
A
might have slept
B
must be sleeping
C
might be sleeping
D
must have been sleeping