You can save electricity by _______ the lights when you leave a room.

A. turn up B. turning on

C. turn off D. turning off

I haven’t _______ my parents for a long time. I miss them very much.

A. hear of B. heard of

C. hear about D. heard from

To protect trees, we shouldn’t use paper towels ______napkins.

A. or B. and C. but D. with

Ben is a foreign teacher. So far, he ______ in our school for five years.

A. was teaching B. has taught

C. will teach D. taught

---What ______ the number of students in your school?

---About two thousand. A number of them _____ from the countryside.

A. is, are B. is, is C. are, is D. are, are

---Angela, you are going to buy a flat here, aren’t you?

---Yes, but I can’t _____ an expensive one.

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

---What do you think of the new foreign teacher Thomson?

---Pretty good. I think he ______ a great job so far.

A. does B. did C. has done D. was done

Liu Huan, a famous male singer, has long hair, because he ______ long hair.

A. used to have B. is used to having

C. is used for having D. is used to have

It was time _______ class. Mr. King asked all the children to sit down quietly.

A. for B. of C. from D. with

---What do you think of receiving and giving gifts?

--- I think the art of receiving a gift is ______ than the art of giving.

A. much more difficult

B. very more difficult

C. much difficult

D. as difficult as