His family __home.They are having dinner now.A.is all in B.are all in C.all is at D.are all at
问题描述：
His family __home.They are having dinner now.A.is all in B.are all in C.all is at D.are all at
答
B.are all in
his family强调的是家里的每一个成员
所以谓语要用复数are