18.　 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

17.　 -You’re always working. _____, let’s go shopping.　

-All you ever want to do is going shopping.

A. Take your time　　　　　　 B. Don’t worry

C. Come on　　　　　　　　 D. Take it easy

16.　 -I’ve studied growing plants as one of my interests. Could I make some suggestions?　

-___________.

　　 A. You will make it　　　　　 B. Go right ahead　　

　　 C. Don’t mention it　　　　　 D. Take it easy

15.　 His illness _____ his absence.

　　 A. showed　　　 B. accounts for　　 C. explains　　　 D. gives out

14.　 You’ve been so kind to us that we will always be deeply _____.

　　 A. out of debt　　 B. in your debt　　 C. in trouble　　　 D. in danger

13.　 -Mr. Green was born in China.

　　 -It’s no _____ he can speak Chinese so well.

A.　　 matter　　　 B. doubt　　　　 C. wonder　　　　 D. problem

12.　 The meeting was to have started at nine o’clock, but the chairman had not _____ by ten.

　　 A. turned up　　　 B. turned down　 C. turned out　　　 D. turned off

11.　 We have planted thousands of trees in recent years. This year _____ we’ve planted ten thousand trees.

　　 A. even　　　　　 B. just　　　　　 C. alone　　　　　 D. only

10.　 It was an exciting moment for these football fans this year, _____ for the first time in years their team won the World Cup.

　　 A. that　　　　　 B. while　　　　 C. which　　　　　 D. when

9.　 As director of the company, I can’t _____ three weeks from work.

　　 A. carry　　　　　 B. cost　　　　 C. pay　　　　　　 D. afford