— Must I return the book tomorrow?— No, you ________. You can keep it for three days.
#75760
A
mustn’t
B
needn’t
C
can’t
D
may not
推荐题目
Mary _______ her mother with the housework, but she didn’t.  
#63072
A
must have helped
B
ought to have helped
C
must help
D
should help
You         get up so early this morning because it’s Sunday today .
#76143
A
not need to
B
don’t need
C
needn’t
D
needn’t do
—Must I go there right now?—No,you ________.You ________ go there before supper.
#62512
A
mustn't;need
B
needn't;may
C
can't;need
D
won't;can