4．A．Yes, I agree with you.              B．That's all right.                     C．Help yourself.

3．A．Thanks a lot.                  B．You please, too.                C．Please help us.

2．A．By bus.                    B．Five days a week.               C．For five days.

1．A．That's fight.                 B．It doesn't matter.                C．With pleasure

3．介绍你的假期计划。

2．有的同学计划在家多看点书，为将来的学习打好基础。

1．有的同学打算外出旅游。