听下面15段对话。每段对话后有一个小题，从题中所的A、B、C三个选项中选出最佳选项。
每段对话读两遍。
1. What is Tom doing?
A. He is going to go to bed.
B. He is doing his homework.
C. He is helping his mother.
2. How many people were at the meeting?
A. About 30.
B. About 35.
C. About 40.
3. What is Jack going to read?
A. A magazine.
B. A letter.
C. A book.
4. What is David going to buy?
A. A skirt.
B. A blouse.
C. A pair of boots.
5. What does the man want to drink?
A. Something cold.
B. Coffee.
C. Tea.
6. What time is it?
A. It's 2.10.
B. It's 2.20.
C. It's 2.30.
7. What is the man going to do tonight?
A. Go to the cinema.
B. Have a meeting.
C. Watch TV at home.
8. How old is the man's bicycle?
A. Five years old.
B. Six years old.
C. Four years old.
9. Where is Mr. Baker now?
A. In the library.
B. At home.
C. At his office.
10. When is the school trip?
A. On Tuesday.
B. On Wednesday.
C. On Thursday.
11.Where is the supermarket?
A. It's over there on the left.
B. It's over there on the right.
C. It's over there at the corner.
12. What does the man mean?
A. He will try to grow vegetables himself.
B. He is going to live on a farm.
C. He will go to he farmer's market.
13. How much will the woman pay for two ties?
A. Sixteen dollars.
B. Thirty dollars.
C. Thirty-two dollars.
14. Which table does the man prefer?
A. A round table with three legs.
B. A round table with four legs.
C. A square table with four legs.
15. What do we learn about Mary?
A. Mary is going to Canada.
B. Mary likes postcards.
C. Mary has traveled all over the world.
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C. 