---I don’t know if his uncle .---I think he if i

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---I don’t know if his uncle ______.---I think he ______if it doesn’t rain.
A.will come; comes B.will come; will come
C.comes; comes D.comes; will come
I don’t think he tried his best to learn English,________?
A.did he B.do I C.didn’t he D.don’t I
请写明解题的思路!语法知识顺带讲下!光写答案者无分!

B 都是将来发生的事：不知道舅舅是否会来,如果不下雨他会来
A
主句谓语是think, believe, expect, suppose, imagine等引导的宾语从句,疑问部分与宾语从句相对应构成反意疑问句.
I don't think he is bright, is he?
We believe she can do it better, can't she?
当主句的主语为第二、三人称时,其后的简短问句则应与主句相一致.例如：
Your sister supposes she needs no help, doesn't she?
You thought they could have completed the project, didn't you?
They don't believe she's an engineer, do they?
She doesn't expect that we are coming so soon, does she?

1.I don't know if his uncle _____.I think he _____if it does I dont't know if his uncle .I rhink he if it doesn't rain. -I don't know if his uncle______.-L think he _____if it does I don't know if ny uncle If he I will be very happy I don't know if he will come tomorrow i think he if he free I really don’t know if Mr Zhang ______.If he ______,I will a I don't know if he ( ) tomorrow 【初三英语从句】I don't know if he ______(come) back,if he _______(c i don't think he put his heart into his study ,______?A.does i don't know if Mr.Li.to the party.i think he will come if h I don't think I know you I don't know if he ( ) If he ( ) .I'll let you know