专四

单选题The government agrees to install services _______ by residents over a ten-year period.

参考答案:A进入在线模考
【译文】正如大气是地球的一部分一样,土壤、湖泊、河流和海洋的水也是如此。
 考查主谓一致。句子后半句是倒装句,主语是复数its soil and the water of its lakes,rivers and oceans。因为较长,所以后置,故选A。