— What can I do for you?— __________A. No, you can’t. B. I’m just looking. C. It is a pleasure.
I finished ______ my homework about two hours ago.
---How often do you surf the Internet? ---______.
I want to cook ______ for my parents.
The doctor tells me I should eat ______ meat and take ______ exercise.
---My mother isn’t feeling well. ---______.