David,turn off the TV ___ no one is watching it.But it ____ off already!David,turn off the TV ___ no one is watching it.But it ____ off already!The music is from the radio.A so that,has been turned B when ,has turned C if ,has been turned D because ,
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David,turn off the TV ___ no one is watching it.But it ____ off already!David,turn off the TV ___ no one is watching it.But it ____ off already!The music is from the radio.A so that,has been turned B when ,has turned C if ,has been turned D because ,
David,turn off the TV ___ no one is watching it.But it ____ off already!
David,turn off the TV ___ no one is watching it.
But it ____ off already!The music is from the radio.
A so that,has been turned B when ,has turned
C if ,has been turned D because ,has turned
为什么不选B,D
David,turn off the TV ___ no one is watching it.But it ____ off already!David,turn off the TV ___ no one is watching it.But it ____ off already!The music is from the radio.A so that,has been turned B when ,has turned C if ,has been turned D because ,
这是一组对话
A:David,如果没人看电视就把电视关了
B:电视已经关了!声音是收音机发出来的.
由B的话可以知道A不知道声音是从哪里发出的,所以可能并不能看到有没有人看电视(或许不在电视的房间),所以用If,表如果.
可以感觉一下,其他选项都不合适.
因为这里电视被关掉是被动的。TV has been turned off,所以BD就选不了了。
because has turned
David,turn off the TV ___ no one is watching it.
But it ____ off already! The music is from the radio.
A so that, has been turned B when , has turned
C if , has been turned D because , has turned
选项是C.
因为选项B和D的第二空不是被动形式。
正确:C
结合句意得知第一空应该填if(如果)更为准确。又第二空的主语it=the TV, 存在被动语态,B和D的has turned是主动结构,故排除它们。