43. In the fourth paragraph the author mainly explains

　　 A. the reason why he chose to live in the center of Rome

　　 B. the reason why the hotel he booked was the right choice

　　 C. what transport they chose to travel in their Italian trip

　　 D. the reason why the mistress gave them some advice

42. What does the author think was the hardest in preparing for his Italian trip?

　　 A. Buying cheap airline tickets to Italy before the traveling

　　 B. Getting a visa without an invitation from the Italian consulate.

　　 C. Booking a comfortable hotel on his own in Rome.

　　 D. Solving the ticket problem far in advance.

41. Why does the author want to go to Italy again?

　 　　 A. He had a great time there.

　　 B. Italy has a lot of attractions.

　　 C. His friend invited him there.

　　 D. He didn't stay in Italy long enough.

39. who　 引导定语从句，先行词是those。

38. advice　 一条建议，此处应用名词。

37. If　 前后是条件关系。

36. their　 指代前面的words。

35. to memorize　 不定式作真正主语。

34. A　 好的记忆力有助于学习，memory为可数名词。