the scientist needs to find some grounds on which to base his argument on 可以放后面吗

the scientist the scientist needs to find some grounds on which to base his argument on 可以放后面吗 the scientist是什么意思 To prove the new theory,the scientist needs to find some grounds _＿his argument.A which to be based onB on which to baseC which to base onD to which to base on The fence needs什么 The life needs exciting 求翻译：the scientist of people 求the scientist 伴奏乐coldplay的, 是the school needs help还是the school needs helping the house needs (clean)为什么？ the house needs ________（repair) The plant needs sunshine and 高一英语单句改错.急1.Kitty said she needs some fresh air2.The scientist said he has spent 10 years working at the research3.He says he bought a beautiful car the day ago4.The astronomer told us the moon moved around the earth the bike needs repairing thr bike needs _____ _____ ______. the doctor needs operate on him 还是needs to operate? They didn't find the lecture by the scientist difficult ------- the old scientist seldom goes out ----(eat)in the evening. The o( )of the house needs painting