Mary， have you finished the novel？
Oh no，I am too busy it． Professor Li asked me to hand in my math paper this week．（ ）
| A． |
reading； reading |
B． |
to read； reading |
| C． |
reading； to read |
D． |
to read； to read |
Could you please tell me ________ get to Xiaogan East Station？
You can take the No.2 Bus over there．（ ）
A．when we canB．how we can
C．when can weD．how can we
My uncle hasn't been back to our hometown for years．
________．He must miss his family very much．（ ）
A．It's a shameB．No way
C．Good jobD．No problem
Be careful!Don't walk on the grass，________ it will"cry"．（ ）
A．andB．butC．orD．so
Look at the"No Photos"sign．You ________ take photos in the art museum．（ ）
A．shouldB．canC．needn'tD．mustn't
To keep children away from danger，we warn parents ________ children at home alone．（ ）
A．leaveB．to leave
C．not leaveD．not to leave