13、  I didn’t p__________(参加) in the discussion yesterday.

12、 It is good manners to respect one’s d__________(尊严).

11、During the Big __________(萧条) period in the 1930s, lots of people suffered from hunger.

10、E________(最终) those freedom fighters achieved their goals by non-violent demonstrations.

9、  You’d better take out a __________（专利） to protect your invention.

8、He became the first ________（视觉） impaired Chinese to study abroad.

7、   He is really an extraordinary g__________（有天分的） bio-chemist.

6、57.   The tiger is a __________（代表） of the cat family.

5、The war brought people in this small country much s__________（苦难）.

4、----Mr. Wang: Excuse me.

----Agent:    51    .

----Mr. Wang: I have a ticket to Tokyo. How can I get there as soon as possible?

----Agent: Let’s see.    52     Oh, China Air. That’s all right. I’ll see what we have this afternoon. Yes, here we are. There is a flight leaving at 2:40, arriving at 5:15.     53    .

----Mr. Wang: That’s fine.

----Agent: All right. I’ll change your ticket.    54   

----Mr. Wang: Here is my baggage.

----Agent: Just put it here.

----Mr. Wang: Thank you very much.

----Agent:    55     Have a good journey.

A: You are welcome.                                          B: It’s very kind of you to do so.

C: What can I do for you?                                  D: Do you have baggage to check in?

E: What airline is it on?                                       F: Certainly not.

G: Is that OK?