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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
