Protecting the earth is not ____ to be left to the government.Everybody should be concerned.
According to the law, all foreigners have to ________ with the local police within two weeks of arrival.
Michelle found a job as a high school teacher which ________ spending quite a lot of time with students.
The watch was very good, and he ________ 20 percent down for it.
—May I ask for leave tomorrow? —No, you can't. ________ applying for the scholarship must be present.
—What about the price of these washing machines? —They are equal in price to, if not cheaper than,________ at the other shops in the street.