完成句子,10 - 离问题结束还有 17 天 23 小时A man stood at the door,not knowing_________ (不能决定是进去还是离开) We must_____________________(阻止废水污染河流)顺便问下.This is the only idea _________ right.A.which

完成句子,10 - 离问题结束还有 17 天 23 小时A man stood at the door,not knowing_________ (不能决定是进去还是离开) We must_____________________(阻止废水污染河流)顺便问下.This is the only idea _________ right.A.which
完成句子,
10 - 离问题结束还有 17 天 23 小时
A man stood at the door,not knowing_________ (不能决定是进去还是离开)
We must_____________________(阻止废水污染河流)
顺便问下.
This is the only idea _________ right.
A.which they think is B.that they think is
C.that they think it is D.which they think it is

完成句子,10 - 离问题结束还有 17 天 23 小时A man stood at the door,not knowing_________ (不能决定是进去还是离开) We must_____________________(阻止废水污染河流)顺便问下.This is the only idea _________ right.A.which
A man stood at the door,not knowing__whether he should enter or not___ (不能决定是进去还是离开)
We must__prevent waste water from polluting the rivers____(阻止废水污染河流)
问题补充：顺便问下.
This is the only idea ____B_____ right.
A.which they think is B.that they think is
C.that they think it is D.which they think it is
主句中有only等词,定语从语的先行词必须用that

A man stood at the door, not knowing wheather to go in or leave.
We must stop polution in rivers.
This is the only idea which they think is right.

whether to enter or to leave
prevent waste water polluting rivers
B对。

1.wether to go into or to leave
2.prevent the river pollution from the dirty water
选C 前有only 用taht ，而且用形式主语IT

1.whether to go in or away from there~~
2.stop the waste water from polluting the river~
补充的应该是B~~

whether to go in or to leave.
prevent water pollution
B
the only
先行为the only、the last等修饰时只能用that引导
This is the only idea that (they think) is right.

A man stood at the door, not knowing whether he should enter orleave。
We must prevent wasted water polluting the rivers
选B

答案如下：
(1)(不能决定是进去还是离开)
whether he should enter or leave (不能缺主语）
(2)（阻止废水污染河流)
prevent the river from waste water pollution .
或者用protect 也可以
（3）选 A
理由是它不是一个同位语从句，所以不用tha...

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答案如下：
(1)(不能决定是进去还是离开)
whether he should enter or leave (不能缺主语）
(2)（阻止废水污染河流)
prevent the river from waste water pollution .
或者用protect 也可以
（3）选 A
理由是它不是一个同位语从句，所以不用that，后面的主it 不能在从句中出现

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