翻译句子:Mr Smith has tow sons.B（空缺）of them are dentists,括号中填什么单

翻译句子:Mr Smith has tow sons.B（空缺）of them are dentists,括号中填什么单 合并含非限制性定语从句的复合句 He has tow sons.Both of them are doctors Mr Brown has three sons,two of them are doctors,______is a p Mr.Whte has two sons,___ looks like him.A:all of them B:both He has three sons ,and all of them are doc 英语单选：Mr.Smith has () to tell us.A some good piece of news B Mr.White has two sons ,and each of them has a sister.how man He has two sons,both of whom are workers.此句中whom可以换成them吗? Mr Green has two sons.___ of them works in Guangdong. He has two sons,both of whom are teachers.和He has two sons b He has two sons,1.and two of them are teachers.2.two of whom He has two sons；both of （）Walk as chemicals.括号中