______ the crisis of economy getting more and more serious, the government is searching for ways to improve people’s life.
| A．As | B．With | C．When | D．If |
.I was about to leave _____ the telephone rang.
| A．then | B．when | C．that | D．and when |
Children under 10 are not permitted _____ the film.
| A．to see | B．seeing | C．saw | D．watched |
The bird hid _____ food inside trees for the winters.
| A．a number of | B．a large number of |
| C．the number of | D．a great many |
--What do you think of the play?
--Oh, excellent! It’s worth a second time.
| A．seeing | B．to see | C．to be seen | D．being seen |
The computer system suddenly while he was searching for information on the Internet.
| A．broke down | B．broke out | C．broke up | D．broke in |