1. x-rays are basically a form of radiation.

[a] fundamentally [b] definitely [c] probably [d] frequently

2. johns unabashed behavior caused great concern among his teachers.

[a] terrible [b] unembarrassed [c] cowardly [d] unforgivable

3. in the united states there are numerous federal, state and local programs aimed at combating air pollution.

[a] fighting [b] limiting [c] prohibiting [d] avoiding

4. older citizens in the united states vote more regularly than younger ones, particularly when a states local issues are being considered.

[a] cast their ballots [b] run for office [c] criticize the government [d] give their opinions

5. ten names were deleted from the list of those invited to attend the conference.

[a] suggested for [b] included in [c] removed from [d] absorbed from

keys: 1～5 abaac