He has two sons ___work as chemists.

he has 2 sons,___work as chemists. He has two sons,both of whom work as chemists. He has two sons,__________ work as chemists. He has two sons,____ works as a chemist. he has two sons,( )work as doctors.Aboth of which Bboth of w He has two sons；both of （）Walk as chemicals.括号中 he has two sons,one of them works as a teacher 那里语法错误 He has two sons,who in the same company He has two sons who He has two sons,both of whom are teachers.和He has two sons b He has two sons,and ( ) are collage students. He has two sons,1.and two of them are teachers.2.two of whom the old man has two sons here and he has( )in the united sta