单项选择题
In the writer's view, the more new goods there are, （）
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
单项选择题 Food packages, bottles and tins for drinks can cause （）
单项选择题 The main cause of pollution is （）
单项选择题 People can help solve the problem of pollution by （）
