“Boys and girls, you should ________ when having lectures,”asked the teacher．

“Boys and girls, you should ________ when having lectures,”asked the teacher．

A.behave yourself

B.behave yourselves

C.behave you

D.behave yours

答案及解析： B

解析：

behave oneself是词组，表示“有好的行为举止”。这句祈使句是针对Boys and girls而言的，所以oneself应为复数。