共用题干
Health Insurance（保险）

Most Americans are responsible for their own medical costs.These can be extremely
high if a person gets very_________(1)or has an accident.So people buy a health
insurance plan to make sure these costs will be_________(2).
Most American colleges and universities have_________(3)health centers.There
may even be a teaching hospital that can treat more serious__________(4).
Some medical services may be included in the cost of attending a school.But health
insurance is usually needed for extra services._________(5)most full-time college
students must have insurance.
Students may already be protected under their family's health plan.If not,many
colleges offer_________(6)own plans.
The University of Michigan will be our example.Students pay a health service fee.
Then there is no extra charge when they are treated for minor__________(7)problems at
the University Health Center. But the school wants students to have health insurance to pay
_______(8)other services.
The insurance plan________(9)by the university costs about one thousand seven
hundred dollars a year. Such health insurance_________(10)generally pay for hospital
services,emergency room care and visits to doctors.They___________(11)do not pay
for care of the teeth.And they usually do not pay for treatment of medical conditions that
existed________(12)the student arrived at school.
International students at the University of Michigan have two________(13).They
can buy the university health plan.Or they can________(14)private insurance that is
approved by the university.
The school also offers a special International Student Insurance Plan.This pays for
most of the services offered__________(15)the University Health Center that are not
included in the health service fee.

_________(12)
A: after
B: if
C: before
D: since