0  343135  343143  343149  343153  343159  343161  343165  343171  343173  343179  343185  343189  343191  343195  343201  343203  343209  343213  343215  343219  343221  343225  343227  343229  343230  343231  343233  343234  343235  343237  343239  343243  343245  343249  343251  343255  343261  343263  343269  343273  343275  343279  343285  343291  343293  343299  343303  343305  343311  343315  343321  343329  447090 

30. The origin of ____ life on earth is ____ question that interests astronomers.(原创)

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

试题详情

29. ---_______ they stop to have a rest?

  ---No, let them go on.

  A. Will                 B. Would           C. Shall             D. Should

试题详情

28. He was so lucky to ______ only a fine for such a serious mistake.

A. get through           B. get over          C.   get away with     D. get across

试题详情

27. Even scientists cannot completely ________for the strange behaviors of the animals before an earthquake. (原创)

A. spot             B.explain      C.call           D. account

试题详情


同步练习册答案