— Bill, is the pink umbrella Anna’s?— No, it _____ be hers. Hers is purple. 
#76056
A
can
B
may not
C
would
D
can’t
推荐题目
My sister met him at the Grand Theater yesterday afternoon, so he _______ your lecture.
#63463
A
couldn’t have attended
B
needn’t have attended
C
mustn’t have attended
D
shouldn’t have attended
—Can we leave the classroom now?—No, you _________. You _________ to leave until the bell rings.
#74081
A
don’t have to; are supposed
B
mustn’t; are allowed
C
needn’t; aren’t allowed
D
can’t; aren’t supposed