he doesnt know if he should bring a p to his friend's birthday party

he doesnt know if he should bring a p to his friend's birthday party ：-Do you know if he is coming?-It doesnt hurt to ask,does it? bring,know,doesnt,a,i,he,him,Will,if,parent连词成句 he doesnt know what it takes to start a business here 改错 He doesnt like eat hamburgers he doesnt have any fun同义句 he doesnt speak English every day If he _____(know) that,he would tell you. I don't know if he will come tomorrow i think he if he free he doesnt like meat very much等于什么 ___ the meeting ,he would have attended.A If he knewB If he hadn't knownC Had he knownD If he didn't know If he comes bacK,please let me know.为什么不用If he will come back I don't know if he ___.if he ____,please tell me .(come) he has a new bike doesnt he?isnt对吗?但是选项里没 doesnt have 只有 A、wasnt he B、isnt he C、does he D、doesnt he选哪个？ i want to know if he ___(come) yesterday. Do you know ----------he will be back.that或if, I don't know if he ____(be) free tomorrow. I don't know if he ____ ( come )