if从句的用法I don't know if liuyang_________(赢得)the game为什么用win或will win 或have won或had won

if从句的用法I don't know if liuyang_________(赢得)the game为什么用win或will win 或have won或had won i don't know if 后跟什么从句时态是怎样的 It doesn't matter if you don't know him well.if引导的是什么从句 由if引导的条件状语从句和主句怎么区分?I don't know if my uncle------.if he-------,I will be very happy. 为什么I don't know if it will rain tomorrow什么从句 宾语从句I don't know _ to visit the old man.A whether B if if i don't know how to swim条件状语从句,后面怎么写? if i don't know how to swim------------.条件状语从句.后面填什么? what if I don't know anyone 的意思 I don't know how I could repair the bike.此句I don't know后跟的是什么从句? 当if 等于whether 时引导的从句用什么时态.如I don't know if she()(come)用现在时还是将来时啊 英语翻译i don't know if i should i don't know if i should i don't know if i should i don't know if i should i don't know if i should i don't know if i should i don't know if i should i don't know if i should i don't know if i should i don't know I don*t know if he will come tomorrow 宾语从句 不懂哪个I don*t know if he will come tomorrow 宾语从句 不懂哪个是主句 哪个是从句 I don't know __ he will come tomorrow.___he comes,I'll let you know.A.whether;if B.if;whether C.when;whether D.that;if请做答并解释,最好说一下相近词的区别和用法 【初三英语从句】I don't know if he ______(come) back,if he _______(come) back ,please let me know.请问这种两个if在一起的题目怎么做啊? 如何辨别宾语从句和主语从句如何辨别I don't know if you can help me.I didn't know that you would come until Friday.哪句是宾语从句哪句是主语从句?为什么?书上写I don't know if you can help me.是宾语从句,而I didn' i don't know if lucy will come to see me in five days.从句中为什么用“wiil come”? 主语从句和宾语从句如何辨别I don't know if you can help me.I didn't know that you would come until Friday.哪句是宾语从句哪句是主语从句?