The mother didn't know to blame for the broken glass as it happened while she was out. A. who B. when C. how D. what 不定式: to加动原不定式.非谓不做谓语用.功能如同名形副.疑问副代可连用.宾补有to分两种.前面加not是否定 to省略 help help sb. do / help do / help to do / help sb. to do 使义动词 make sb. do / make sb. doing / make sth. done be made to do 感官动词 see sb. do / see sb. doing sb. be seen to do / sb. be seen doing 第九课时 【查看更多】

 

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The mother didn’t know_________to blame for the broken glass as it happened while she was out.?

A.who                   B.when                 C.how                   D.what?

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The mother didn’t know ____to blame for the broken glass as it happened while she was out.

    A. who    B. when    C. how     D. what

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The mother didn’t know _____to blame for the broken glass as it happened while she was out.

A.whoB.whichC.theyD.that

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The mother didn’t know _____to blame for the broken glass as it happened while she was out.

A.who B.which C. they D.that

 

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The mother didn't know ________ to blame for the broken glass as it happened while she was out.


  1. A.
    what
  2. B.
    how
  3. C.
    when
  4. D.
    who

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