I don’t know __________, but I guess he may be a doctor.A. how he is B. what he is C. what does he do
---Do you know how long ________? ----I’m sorry I don’t know.
Jim has many hobbies, ________ swimming, hiking and playing badminton.
I _____ the book for two weeks. I must return it to the school library.
Though it was very late, they _______their discussion.
---I am going to Qingdao and stay there for a week. ---______ you are there, would you please buy some books for me?