He coughed day and night. His wife asked him to stop smoking.
| A．giving up | B．going on |
| C．give up | D．to go on |
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
------ __ does your father go to see your grandmother ?
------Once a month .
A.How long. B. How soon C. How often.