Question

The factory ______ its waste into the river, but now it deals with the waste in a new way. A...

The factory ______ its waste into the river, but now it deals with the waste in a new way. A．used to dump B．is used to dump C．used to dumping D．is used to dumping

Answer 1

A

考查used to的用法。句意“工厂过去常常把废水排进河里，但是现在，它用一种新的方法来处理废水。”used to do sth.“过去常常做某事”；be used to doing sth.“习惯于做某事”；sth. be used to do sth./for doing sth.“某物被用来做某事”；sth. be used as...“某物被用作......”。故选A。