选择最恰当的答案my parents____teathers.A.both are B.are both c.all are d.are all

问题描述:

选择最恰当的答案
my parents____teathers.A.both are B.are both c.all are d.are all

答案:B.are both
both要放在系动词are之后.
例如:
We are both students .我们俩都是学生.
在此处both 是副词,表示两者都,副词一般放在情态动词和be 动词之后 .
记住一个句子:we are all students.我们都是学生.