要减少老师的烦劳，你可以做到的有     [ ]

①主动帮助老师；②积极与老师配合，参与课堂教学；③诚实守信，热爱班集体；④课堂纪律涣散，教学效率低下

A．①②③      

B．①③④  

C．②③④      

D．①②④

I can      your homework being wrong , but you mustn’t copy from others.

A．put up with

B．come up with

C．keep up with

D．end up with.