— I phoned you yesterday morning. A girl answered, but I didn’t recognize the voice.— Oh, it __________ my younger sister. She was in my room at that moment.
#62876
A
must have been
B
should have been
C
could have been
D
may have been
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- Look, Sue is over there.- That ____ be her. She is in Canada now.
#78119
A
mustn’t
B
can’t
C
needn’t
D
won’t
People ______always be careful with fire， or it can be dangerous.
#76425
A
can
B
needn’t
C
must
D
shouldn’t
Look! The light in the room is still on. Mr. Liu at work.
#77067
A
must
B
can’t be
C
must be
D
have to be
He went into his room, the light and began to work.
#77717
A
has turned on
B
turned off
C
turned on
D
has turned off