I. Choose the word whose underlined part has a different pronunciation from the others in each group.

A.scientist
B.disease
C.sickness
D.medicine

II. Choose the word whose main stress is placed differently from the others in each group.

A.conservation
B.environment
C.circulation
D.reconstruction

II. Choose the word whose main stress is placed differently from the others in each group.

A.eliminate
B.preparation
C.disappearance
D.vegetation

II. Choose the word whose main stress is placed differently from the others in each group.

A.medicine
B.erosion
C.importance
D.endanger

Choose the best answer to each of the following questions.
Try to do this test. It is ____ than the others.
A.less difficult
B.less and less difficult
C.least difficult
D.more and more difficult

Choose the best answer to each of the following questions.
Summer is _____ season of the year.
A.hottest
B.the hottest
C.the hotter
D.the more hottest

Choose the best answer to each of the following questions.
Of all athletes, Alex is ______.
A.the less qualified
B.the less and less qualified
C.the more qualified
D.the least qualified

Choose the best answer to each of the following questions.
____you get to the cinema, ____ seat you have.
A.The sooner/ the better
B.The soon/ the good
C.The soonest/ the best
D.Sooner/ better

What do we call machines that make electricity?
A.Voltages
B.Electric magnets
C.Generators or turbines
D.Pipes and radiators

The advantage of harnessing the power of the tides and of sunlight to generate electricity is that they ____________.
A.do not pollute the environment
B.are more reliable
C.are more adaptable
D.do not require attention