28. Mike-s room isn’t tidy(整洁) because ________.
A. something is broken
B. he can-t find his watch
C. he is an English boy
D. his things are everywhere
第1题:
A、haven’t
B、hasn’t
C、isn’t
D、aren’t
第2题:
He seldom does his homework at school on weekdays,( )he?
A. doesn't
B. isn't
C. does
D. is
第3题:
第4题:
There must be something wrong with my computer,()there?
A. mustn't
B. needn't
C. isn't
第5题: