6. If a student wants to express his gratitude for professor’s help, he can say ________. （      ）

A. “I am so sorry that I am wasting your time.”

B. “I hope I didn’t disturb you.”

C. “Don’t you mind I disturb you?”

D. “Thank you so much. I really appreciate your help.”

7. When an Englishman says “I was only pulling your leg”, he means ________. （      ）

A. I was only trying to prevent you from making progress.

B. I was only warning you.

C. I was only joking.

D. I was only asking you for help.

8. The first week day after Christmas, a legal holiday in England, Wales, Northern Ireland, New Zealand, Australia and South Africa, is called ________. （      ）

A. Boxing Day                                               B. Easter

C. Thanksgiving Day                                      D. St. Valentine’s Day

9. “To ride one’s high horse” means ________. （      ）

A. to be naughty                                            B. to be energetic

C. to be arrogant                                            D. to be optimistic

10. “________” illustrates the metaphor that ideas are commodities. （      ）

A. What he said left a bad taste in my mouth.

B. Those ideas died off in the Middle Ages.

C. Mathematics has many branches.

D. There is always a market for good ideas.