_______ do you help your mother do housework？
Every day． I think it's our duty to do it．（ ）
| A． |
How often |
B． |
How far |
C． |
How soon |
D． |
How much |
Tony, do you think our city is becoming more and more beautiful？
Yes, especially after so many trees ______ last year．（ ）
A．are plantedB．have been planted
C．were planted
______ amazing movie the Wandering Earth is!
I think so． And that's the most fantastic one of all the movies．（ ）
A．HowB．What anC．What
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