— 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
--It is really fun to hike and I often go hiking in the forest.--But hiking alone in the forest ______ be very dangerous.
#63596
A
can
B
must
C
shall
D
will
--- May I smoke here? --- If you , choose a seat in the smoking section.
#63523
A
should
B
could
C
must
D
may
Must I clean my rabbit’s hutch every day? － No, you __________.
#76783
A
mustn’t
B
needn’t
C
can’t
D
don’t
------ May I smoke here?------ If you____, that's the smoking section over there.
#63312
A
should
B
could
C
may
D
must
Whenever my grandmother calls just to chat with me，I drop everything and enjoy the moment，knowing these times__________pass．
#62578
A
call
B
must
C
shall
D
might