Having checked the doors were closed, and all the lights were off, the boy opened the door to his bedroom. A. why B. that C. when D. where [解析] B 所填选项引导宾语从句.从句中不缺任何成份和意义.只缺少连接词.所以用that引导. 查看更多

 

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Having checked the doors were closed , and _________ all the lights were off, the boy opened the door to his bedroom.

  A. why        B. that      C. when         D. where

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Having checked the doors were closed , and _________ all the lights were off, the boy opened the door to his bedroom.

  A. why             B. that              C. when             D. where

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Having checked the doors were closed,and_______all the lights were off,the boy opened the door to his bedroom.

A.why                                                             B.that

C.when                                                           D.where

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Having checked the doors were closed, and _____all the lights were off, the boy opened the door to his bedroom.

A.     why  B. that   C. when  D. where

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Having checked the doors were closed, and _____all the lights were off, the boy opened the door to his bedroom.

A.     why  B. that   C. when  D. where

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