It was a fantastic trip．So， which city did you like best， Wuhan， Chengdu or Chongqing？
______．There were good things and bad things about them．
（ ）
A．No problemB．It is hard to say
C．Enjoy yourselfD．You must be joking
Dad, must I have the homework finished at once？ I want to play outside with my friends now．
No, you ______． You can finish it tomorrow．（ ）
A．can'tB．mustn'tC．needn't
My brother with other nine firefighters ______ hard every day in order to help people in need at any time．（ ）
A．practicesB．practiceC．practiced
All the foreign kids don't feel lonely ______ they are alone in China．（ ）
A．even thoughB．since
C．unless
Where is your father, David？ I need his help．
He ______ work．（ ）
A．has been toB．has gone to
C．has been in
My parents often ______ a flower in the green house, but I think I'm a flower in the open air,beautiful and strong．（ ）
A．compare me andB．compare me with
C．compare me to