— _______ we clean the classroom at once? — No, you _______. You _______ clean it after school.
#78132
A
Must; needn’t; may
B
Must; mustn’t; can.
C
Shall; can’t; must
D
Need; mustn’t; may
推荐题目
—Listen! Is Mary singing in the next room?—No. It _______ be Mary．She has gone to Shanghai for an important meeting.
#74311
A
can’t
B
may not
C
mustn’t
D
needn’t
– Who didn’t turn off the light after school yesterday?– It ______ be Lucy. She told me she was the last one to leave the classroom.
#74517
A
must
B
mustn't
C
might
D
can't
—Look, someone left a book.—Oh, yeah … This book ________be Kitty’s. Only she likes to read this kind of books.
#74186
A
can
B
must
C
may
D
might
─ Is the woman in white our manager? ─ It ________be her. She has just left for Shanghai.
#74491
A
must
B
may
C
can’t
D
couldn’t