______ his arrival in Canada, David was attracted by the beautiful scenery and decided to stay there for another week.

　　　 A. In　　　　　　　　　　　 B. On　　　　　　　　　　　　　　 C. At　　　　　　　　　　　　 D. Besides

       The boy insisted that he ______ nothing wrong and that he ______ at once.

       A. should do; should be set free                      B. should do; must set free

       C. had done; be set free                                 D. had done; must be set free

       Please don’t be too hard on her work, ______, she has tried her best.

       A. After all               B. Above all                    C. At all                      D. In all

　　　 Laughter, along with an active sense of humor, ______ protect you against a heart attack,according to a recent study.

　　　 A. have helped　　　　 B. helped　　　　　　　　　　　 C. help　　　　　　　　　　　 D. helps

       I told your brother not everybody could work out the problem as quickly as him, ______?

       A. could he              B. didn’t I                      C. didn’t he                 D. could they

       ______ you have got the news about him, I won’t hold it back from you.

       A. Now that            B. As if                          C. Even though           D. In case

      I bought three books, but none of _______ is interesting.

     A. which               B. that                       C. what                     D. them

Recently I bought a beautiful car, ________ was reasonable.

A. of which price B. the price of whose 　　

C. the price of which　 D. which price

We are often _____ by the doctors to eat more healthy food and take plenty of physical exercise.

A. suggested　　　　　 B.advised　　　　　　　　　　　 C. approved　　　　　　　 D. insisted

       High school is ______ time when you can learn many skills, including how to get along with ______ partner.

       A. a; a                     B. the; the                      C. /; the                      D. /; a