---- Must I get through the business in one evening?
---- No, you______.
A. mustn’t B. needn’t to C. don’t have to
Our government has done _____ to stop pollution.
A.useful something
B. useful anything
C. something useful
Nanyue is a famous mountain and _____ tourists come here every year.
A.thousands of
B. thousand
C. thousand of
— Where is William?
— He ______ the teacher’s office. He’ll be back soon.
A. has been to
B. has gone to
C. will go to
Do you think there ________ robots in People’s homes in the future?
A. will be
B. will have
C. is going to have
I don ' t know .
A.where she comes from
B. how old is she
C. When was she born