Which of the following can be inferred from the passage?
A.Our present energy sources must be eliminated and replaced with alternative sources.
B.Demands for energy in the future are likely to decrease.
C.The search for alternative energy sources is not over.
D.Alternative sources of energy on this planet are very limited.

The passage suggests that .
A.people use energy without giving great thought to where it's coming from
B.modern society requires a minimum amount of energy to keep it running
C.the search for energy sources is mainly a problem for the future
D.scientists believe we will never have to go without our modern conveniences

The word their in paragraph 3 refers to .
A.jobs
B.mentors
C.customers
D.experiences

What do mentors at Vocation Vacations do?
A.explore jobs that people are interested in
B.train people for their dream jobs
C.give people advice on how to choose a job
D.show people what their jobs are like

(16)
A.bring
B.result
C.create
D.affect

(17)
A.exceedingly
B.excess
C.excessively
D.excessive

A.committee
B.refugee
C.referee
D.employee

(18)
A.enlarge
B.maximize
C.raise
D.rise

(20)
A.minimized
B.created
C.brought
D.done

(22)
A.block
B.quantity
C.pile
D.number