It seems that living green is____ easy and affordable A small step makes a big difference[ ]

I often make mistakes _______grammar.—Why not ask your teacher _______help

This white bike is too expensive.I can’t ______ it. Could you show me a cheaper one

Mr Zhou is very _______ with his students. He asks them not to be late. If they are late, they have to stay outside the classroom until the next class.

Could I ask you some personal questions —