I find _______ necessary to take some warm and dry clothes with us during the walk.
| A．it | B．which | C．that | D．What |
—Hello! Can I speak to Chris? —Sorry, he isn’t in. He _______ Japan on business.
A. has been to B. has gone C. has gone to
—_____ is the population of America?
—I don’t know. But I know it’s _______ than that of China.
A. What; smaller B. How much; smaller C. What; less
_______ your help, we can finish the task on time.
A. Except B. Without C. Thanks to
—The dictionary is a useful _______ for understanding new words.—I think so.
A. plan B. tool C. way
---Shall we go hiking tomorrow? -----______.The radio says it will rain .
| A．Sure | B．That’s a good idea |
| C．I’m afraid I can’t | D．All right |