46.Lucyusuallycleansthecageeverytwodays.(對劃線部分提問)   

問題詳情：

46. Lucy usually cleans the cage every two days. (對劃線部分提問)

    ______ ______ does Lucy usually clean the cage?

47. Jenny worked hard in order to catch up with others.( 將簡單句改為複合句)

    Jenny worked hard ______ ______ she could catch up with others.

48. Some reporters are interviewing a government official on traffic problems now.（改為被動語態）

       A government official is _________ _________ by some reporters on traffic problems now.

49. Mary came to China three years ago. (改為同義句)

    Mary has ______ in China since three years ago.

50. Zhai zhigang became the 1st Chinese astronaut to walk in space. (改為定語從句)

Zhai zhigang became the 1st Chinese astronaut ______ ______ in space.

【回答】

46. How often  47. so that  g interviewed   49 been  50. that walked

知識點：句型轉換

題型：未分類