How long do you think it will be before China sends a manned

来源：学生作业帮编辑：拍题作业网作业帮分类：英语作业时间：2024/05/01 04:50:43

How long do you think it will be before China sends a manned spaceship to the moon?
主句是How long do you think it will 主语是什么?you?那 it will be 是什么?

you 是主句的主语
it 是从句的主语
it will be (将要"多久“） it 表时间
请及时采纳,不懂继续问( 天天在线）
再问： it是状语从句的主语吗？连接词省略了吗？主句是How long do you think吗？
再答：这是个It will be + 时间段 + before-从句还要多久某件事才会发生。我先在抢答时没看到后面还有个before从句这样的话，主句主语当然是表时间的It 了比如：他们还要三天就会来 It will be 3days before they come.
再问：这道题It will be后边没有时间段，是不是题错了？
再答：没错，这里就是他要问的呀----How long 你看下面这句，如果就3 days 提问，不就是这样的了吗？ It will be 3days before they come. ---How long will it be before they come?
再问： it是形式主语吗？那真正的主语是从句吗？
再答：不是！是表时间的。如果它是形式主语，哪来的真正主语呀？！后面只有个before ---时间状语从句

How long do you think it will be before China sends a manned How ong do you think it will be before China sends a manned How long do you think it will be __ China sends a manned spa how long do you think it will be___china sends a manned spac 1.----How long do you think it will be____China sends a mann How long do you think it will be before another aircraft car 为什么是How long do you think it will be ... How long do you think it will be ___ the bus arrives here A. How long do you think it will be ______ the economy revives? 英语改错.1.How long do you think the meeting will be lasted?2.A 62.How long do you think he will（） (A) begin (B)away (C) be it won't be long before/do something and you will do/dream这三