–I’ve been coughing like this for several days.
--I’m sorry _   you’re not well.

We must______ using plastic bags in order to protect our earth..

Parents often ask us _____ water in our life.

—The sweater is very nice. I’ll take it.
—But you’d better ________ first. I think it is a little large for you.

  –Shall we go and ________ hello to the foreign teachers?
–Good idea! Let’s go.

—I often have hamburgers for lunch.
— You’d better. It’s bad for you ______ too much junk food.

—What a nice coat! I’ ll take it.
—But you'd better _________ first.  I’ m afraid it may be small for you.
A. try it on B. pay for it C. put it on  

Smoking is not allowed in public places since May 1st. It may be a good chance for some people to ______ smoking.

A．put up

B．give up

C．pick up

D．look up

—What are you doing? —I'm     the key to the door.
A. finding out       B. looking after    C. looking for

She likes reading. She usually________ some books from the library.
A. buys           B. lends                   C. borrows