11. Maths ____ the language of science.

　　 A. is　　　 B. are　　 C. was.　 D. are going to be

10.The following _____ some other mental diseases.

A. being　　 B. are　　 C. was　　 D. were

9. Where _____ dirt, there are flies.

A. there has　 B. is　　 C. there is　 D. there are

8. A fork and knife _____ on the table.

A. is　　 B. are　 C. has been　　 D. have been

7. Nobody but Jane _______ the secret.

A. knows　　 B. know　　 C. have known　 D. is known

6. It is the ____ for Westerners to celebrate Christmas.

A. habit　　　 B. manner　　 C. custom　　　　 D. way

5. We had a party to____ Mother’s silver wedding.

A. congratulate　　 B. celebrate　 C. win　　 D. defend

4. The young English teacher has devoted all his time ____.

A. to teach　 B. to teaching　 C. in teaching　　 D. teaching

3. It was because of the heavy snow last night ____ the house was destroyed.

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

2. The new couple often argued _____each other ____ money.

A. with, for　　　 B. to, about　　 C. with, over　　　 D. to, of