10. Is this the reason at the meeting for his

carelessness in the work?

   A. he explained   B. what he explained

   C. how he explained   D. why he explained

9. It's helpful to put children in a situation they

can see themselves differently.

   A. that   B. when

   C. which   D. where

8. Recently I bought an ancient Chinese vase,

was very reasonable.

   A. which price   B. the price of which

   C. its price   D. the price of whose

7. The old temple roof was damaged in a storm is now under repair.

   A. where   B. which

   C. its   D. whose

6. 1 suggest that we should take part in more such activities in future we did last week.

   A. which   B. as

   C. that   D. than

5. Tve become good friends with several of the students in my school I met in the English speech contest last year.

   A. who   B. where

   C. when   D. which

4. There are 103 elements found in nature, are metals.

   A. most of which   B. most of them

   C. most of that   D. most which

3. Wind power is an ancient source of energy we may return in the near future.

   A. on which   B. by which

   C. to which   D. from which

2. —Can you believe I had to pay 30 dollars for a hair- cut?

—You should try the barber's I go. It's only 15.

   A. as   B. which

   C. where   D. that

1. 一What do you think of teaching,Bob?

—I find it funny and challenging. It is a job you are doing something serious but interesting.

   A. where   B. which

   C. when   D. that