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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—Do you think the thief entered through the window?—No, if he had, I don’t believe, _______ broken the living-room’s window.
#88199
A
he would have
B
he must have
C
he had
D
should he have
— There's someone outside. Who it be ?— It must be Mary. She promised to come over at 8: 00.
#89275
A
must
B
can
C
shall
D
need
—Is there a fog in the evening ?—There _____ be . I’ll make a phone call to find it out .
#89529
A
must
B
would
C
will
D
might
Thank you for giving me a hand. I ______ in the experiment without your valuable help.
#89288
A
have failed
B
will fail
C
would have failed
D
must have failed