—I don’t mind telling you what I know. —You _____. I can manage it myself. 
#63188
A
mustn’t
B
ought not to
C
can’t
D
don't have to
推荐题目
Jim______   sing Chinese songs very well now, but he______do it last year.
#75382
A
can; can’t
B
could; can’t
C
can; couldn’t
D
could; couldn’t
That man over there _____ be Mr Wang . He has gone to Yushu. 
#74843
A
may
B
mustn’t
C
should
D
can’t