55. Mary went to Egypt last year. (用three times改为现在完成时)

Mary                                   to Egypt three times.

56. They go to City Library once a week. (对划线部分提问)

                                  do they go to City Library?

57. The man drove too fast, so the policeman stopped his car. (改为同义句)

The man drove too fast, and                                                   , the policeman stopped his car.

58. I want to know. Will they go sailing tomorrow? (改为宾语从句)

I want to know                                                    go sailing tomorrow or not.

59. Which subject do you prefer, art or music? (改为同义句)

Which subject do you                                  , art or music?