录音中有一段对话，听对话两遍后，根据所听内容完成下面的表格(每空不多于三个词).

40. Which picture shows "a thankful heart to each other" ?

39. -- Did you go skateboarding last weekend?

　　 -- Yeah. 　　　　　　we had .

A. How a fun　　 B. How fun　　　　　 C. What fun　　　　 D. What a fun

38. -- What does your sister look like?

　 --　　　　　　　　

　　 A. She's outgoing　　　　　　 B. She would like some coffee　　

C. She likes painting　　　　　 D. She is of mediurn height

37. Even the top students in our class didn' t work out the problem. So it 　　　　　be very difficult.,　　

A. need　　　　　 B. must.　　　　　　　 C. can t　　　　　 D. shouldn′t