I was reading attentively in my own room _____ suddenly he knocked at the door.

A. when
B. while
C. then
D. as
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科目：高中英語 來源：2010年吉林省高二第一次月考英語卷 題型：單項填空

I was reading attentively in my own room ________ suddenly he knocked at the door.

A.when

B. while

C.then  

D. as

 

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科目：高中英語 來源：0107 月考題 題型：單選題

I was reading attentively in my own room _____ suddenly he knocked at the door.
[     ]
A. when
B. while
C. then
D. as

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科目：高中英語 來源： 題型：

I was reading attentively in my own room ________ suddenly he knocked at the door.

A.when B. while  C.then          D. as

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科目：高中英語 來源： 題型：

I was reading attentively in my own room ________ suddenly he knocked at the door.

A.when

B. while

C.then  

D. as

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科目：高中英語 來源：2010年吉林省長春外國語學(xué)校高二第一次月考英語卷 題型：單選題

I was reading attentively in my own room ________ suddenly he knocked at the door.

A．when
B．while
C．then
D．a(chǎn)s

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