He has two sons；both of （）Walk as chemicals.括号中

He has two sons；both of （）Walk as chemicals.括号中 He has two sons,both of whom work as chemists. He has two sons,both of whom are teachers.和He has two sons b He has two sons,both of whom are workers.此句中whom可以换成them吗? He has two sons,both of whom are workers.此句中whom可以换成who和whic he has two sons,( )work as doctors.Aboth of which Bboth of w he has two sons,one of them works as a teacher 那里语法错误 The old man has two sons,both of （ ）are working abroad.Athem 1 .He has two sons.Both of 应该填whom还是who are teachers .2.He h He has two sons,__________ work as chemists. He has two sons,____ works as a chemist. The old man has two sons,__are lawyers.A.both of them B.both