if i don't know how to swim条件状语从句,后面怎么写?

i don't know i can do it if not now选择AwhereB.whyC.whenD.how I don't know how to i don't know how to how can i know if you don't 我理解能力差,所以请说的详细点.. 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? 英语翻译Sometimes I don’t answer because I don’t how to talk about something that I don’t want to talk about,meanwhile I don’t know how to answer the others if I don’t want to talk. 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 IF YOU DON‘T KNOW HOW TO SPEAK IN ENGLISN； I don't know,if I will be good at English maybe I will be an English teacher,How are how to play basketball?I don't know.who know? i don't know how to do it句型转换i don't know[ ][ ][ ]do. i don't know how与 i don't know why有什么区别? i don't know how i feel的中文 I don't know how can I ask questions? 英语翻译i don't think i know how.. I don't know.Do it how can i I'm really shy and I just don't enjoy partise._____I don't know anyone there?A.what if B.how C.what's wrong D.why