Radio stations at which (A) broadcast only news (B) first appeared (C) in the (D) 1970s.
A.appeared (C)
B.only news (B)
C.at which (A)
D.in the (D)

JKL Motorbikes sells (A) six different models, the first which (B) they started (C) making (D) in 1985.
A.which (B)
B.started (C)
C.making (D)
D.sells (A)

Visitors were (A) not permitted entering (B) the park after dark because of (C) the lack of (D) security and lighting.
A.entering (B)
B.because of (C)
C.lack of (D)
D.were (A)

The panda's ______ habitat is the bamboo forest.
A.nature
B.naturalized
C.naturally
D.natural

Animals shouldn't be ______ for recreation and entertainment.
A.killed
B.captured
C.scattered
D.responsible

14 percent of primate species are highly ______.
A.dangerous
B.danger
C.endanger
D.endangered

It’s important for the developed countries to reduce energy _____ as much as possible.
A.waste
B.destruction
C.consumption
D.exhaustion

There are over 2,000 varieties of snake______ are harmless to humans.
A.most of them
B.mostly they
C.most of which
D.which most

Choose the word that has main stress placed differently from the others.
A.encourage
B.cultivation
C.discourage
D.responsible

To _____ it may concern.
A.who
B.which
C.that
D.whom