— 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.
#62616
A
must have been
B
should have been
C
could have been
D
may have been
推荐题目
You ______ be hungry already—you had lunch only two hours ago!
#75956
A
wouldn’t
B
can’t
C
mustn’t
D
needn’t
The lady in this photo _______ be over fifty! She looks so young!
#74348
A
mustn’t
B
can’t
C
must
D
can
--- _______ I come back before 6 o’clock?---No，you _______．But you _______ be back later than 7 o’clock．
#76770
A
Need；must；must
B
May；mustn’t；can’t
C
Can；can’t：can’t
D
Must；needn’t；can’t
My car is covered with thick snow and now the engine simply ______ start.
#63518
A
can’t
B
mustn’t
C
won’t
D
shan’t