We can not trust him any more because he often________ his duty.

John _______ to be a polite man. But in fact he is veryrude.

When you fill in the application form, please use your_______ address so that we can contact you easily later.

He works in our university as a visiting _______, not as a formal faculty member.

In the United States, the foreign policy is decided by the ________ government, not by each state.

We do not have a _______ school in our institute. The highest degree we provide for the students is a B. A. and a B.S. .

Please be serious. I am not _______. You should consider it carefully

He always has a lot of _______ ideas in his mind , and sometimes we do not even know what he is thinding about.

With the help of the government , a large number of people ---_______ after the flood in 1991.

When making modern cameras , people began to_______ plastics for metal.