选择题：11.In the United States, the foreign policy is dec

11.In the United States, the foreign policy is decided by the ________ government, not by each state.
　A. federal B.figure C.scientific D.service
12.He works in our university as a visiting _______, not as a formal faculty member.
　A. traditional B.scholar C.nurse D.pilot
13.When you fill in the application form, please use your _______ address so that we can contact you easily later.
　A. policy B.plain C.permanent D.principal
14.John _______ to be a polite man. But in fact he is very rude.
　A. pretends B.assures C.affords D.melts
15.We can not trust him any more because he often ________ his duty.
　A. owes B.spoils C.deserts D.neglects
16.In order to increase our output, we need to import more production _______.
　A. facilities B.hens C.votes D.artists
17.When a spacecraft travels, one of the major problems is reentry into the Earth’s _______.
　A. surface B.atmosphere C.attitude D.bent
18.This river forms a natural _______ between China and Korea.
　A. boundary B.string C.spot D.zone
19.She is already 16years old. But she _______as if she were still a little girl.
　A. believes B.absorbs C.accrses D.behaves
20.We are _______ at the rapid progress Mark has made in this semester.
　A. distinguished B.annoyed C.astonished D.scored