Keys used for the doors. [ ]A. is, opening B. is, opened C. are, opening D. are opened 题目和参考答案——青夏教育精英家教网——

题目内容

Keys ______ used for ______ the doors.

[ ]

A. is, opening　　　
B. is, opened　　　
C. are, opening　　　
D. are opened

C

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相关题目

Keys ________ used for ________ the doors．

A．is, opening

B．is, opened

C．are, opening

D．are opened

Keys ________ used for ________ the doors.

[　　]

C. are, opening

Keys ________ used for ________ the doors.

[　　]

C. are, opening

句型转换。
1. The telephone was invented in 1876. (对画线部分提问)
    _____ was the telephone _____ ?
2. Julie Thompson invented them. (改为被动语态)
    They _____ by Julie Thompson.
3. Keys are used for opening the doors. (对画线部分提问)
     _____ are keys used _____ ?
4. I filled the basket with flowers．(改为同义句)
    The basket is _____ flowers.
5. Tea wasn't brought to the western world until 1610. (改为同义句)
     Tea _____ brought to the western world _____ 1610.