if they don' help us=__ __ __

if they don' help us=__ __ __ they help us learn.they help us play. If you don't help us,we can't finish our work.同义句转换 We will have to finish the work hardly if you don't help us 同义句 If we don't know a new word ,[d ]can help us.d 开头的 They need us( ) (help)them. They need us( ) (help)them. （ ）They asked _____they could help us A that B what C if D who With the rich man's help,they don't hane to worry about________ (谋生)They give us _________(一些) knowledge. we play a trick if they don't give us a treat.对play a trick 进行提问[ ] do you [ ] if they don;t give you a treat? We won't attend the meeting if they don't ask us.We don't attend the meeting unless they ask us.(将if not改成unless)won't为什么变成了don't了? 有关倒装的选择 ------,our experiment wounld have faildeda if they didn't help usb.if they haven't helped us c.had they noy helped usd.should they not helped us我想知道b d 哪里错了? _______time,they would certainly come and help us.A.If had theyB.If they hadC.Had theyD.Both B and CExplain it. They asked ____ or not they could help us .A.if B.whether为什么选B不选A,if不是也有是否的意思吗? they help us play什么意思 they can help us find ( )favorite books They will help us(变被动语态) We will have to work hard if you don't help us同义句The work will be very hard for us _ _ _