单项选择题
A．the less pollution we have B．the harder pollution can be done away with C．the more pollution there will be D．the more easily pollution can be controlled
A．always went to school together B．could have lessons on the radios C．listened to teachers at school D．built radio schools with teachers
A. it’s full B. Good question C. I bet that was fun D. Good idea E. I used to F. fewer cars G. Look H. Hey