1、After Yang Liwei succeeded in circling the earth ,____ our

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1、After Yang Liwei succeeded in circling the earth ,____ our astronauts desire to do is walk in space
为什么填what 能不能翻译一下
2、What makes me feel worried is ____ singing stars are centered on by masses of teenagers today
为什么填that 翻译下
3、When the Internet was ereated in 1969 ,only a few people knew about it .that"s _____it came into existence as a secret US goverments project
填because,为什么不填WHY呢
4、One of the most important questions they had to cinsider was ____ of public health
填that 为什么,句子成分能分析下么

1.what 引导了一个主语从句,在从句中充当desire to do的宾语.在名词性从句当中,缺少主宾表的话,一般都填what.
在杨利伟成功环绕地球飞行后,我们宇航员最想做的事情就是在太空漫步.
2.that引导一个表语从句,is 是系动词,所以that引导的是表语从句.从句中是一个事实,没有疑问在里面,所以用that.
3、That's why后跟结果,That's because 后跟原因.
eg.He didn't catch the bus,that's why he was late.
He was late,that's because he didn't catch the bus.
4、that 这里为一个代词,代指前面的important questions
One of the most important questions 是主语
they had to cinsider 是定语从句,修饰主语
was是系动词 _that__ of public health 是表语
再问：额，最后一题那个为什么一定填that ， what which this 都没有指代作用么？还有那个of public health 为什么不是定语修饰that 谢谢了
再答： what, which是没有指代作用，它们一般用来引导从句。只有that可以代替句单数可数名词或不可数名词，以避免重复。

1、After Yang Liwei succeeded in circling the earth ,____ our After Yang Liwei succeeded in circling the earth,______ our After Yang Liwei succeeded in circling the earth,_____ our a 英语语法问题1After Yang LiWei suceeded in circling the earth,____ After YAMGLIWEI succeeded in circling the earth ______ our a 同义句转换 After Yangliwei succeeded in circling the earth .. 1.After YangLiwei succeeded in circing the earth,( )our astr yang liwei flew around the earth in the shenzhou 5 in 选择填空 Yang Liwei ()about 21 hours in ()around the earth 14 ti after our country succeeded in holding the 2008 Beijing Olym After circling around the earth for three days,Shenzhou Spac Yang Liwei's flight around the Earth _______about 22 hours