This is ______ book. They like it very much.
I think _is impossible for me to climb such a high mountain. A. it B. this C. that
Let's stop for a few minutes. I'mtired to walk any farther. A. so B. enough C. too
--- __salt did you put in the soup? --- None. I forgot. A. How much B. How many C. How long
I had a good time my stay in Chengdu this summer vacation. A. on B. during C. in
Wea party to welcome the new students next Friday evening. A. have B. had C. will have