题目内容：

I think every student should go to school ________, but some of them are always late.
A,by the time B,on time C,at time D,for a time

优质解答

I think every student should go to school ________,but some of them are always late.A,by the time B,on time C,at time D,for a time权威解答如下：以上是个表示转折关系的并列句,根据后面意思,但是他们中的一...