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A.where
B.that
C.why
D.when

You will be able to see the wonders of ..............: oceans, rivers, mountains...
A.nature
B.structures
C.buildings
D.constructions

The principal consequence of the greenhouse effect is assumed to be an increase in ______.
A.global temperatures
B.the building of fossil fuels
C.the sun's radiation reaching earth
D.the building of greenhouse

What does the word It refer to?
A.Heat radiation
B.The glass of a greenhouse
C.A result of mankind's burning of fuels
D.Atmosphere

One thing that all atmospheric scientists apparently agree about is that ______.
A.greenhouse affects the earth's temperature significantly
B.global temperatures are never rising
C.the glass of greenhouses has reduced the need to burn fuel
D.the amount of carbon dioxide in the atmosphere is increasing

A.fabric
B.leather
C.affect
D.scatter

A.compost
B.package
C.bucket
D.device

Have you ever thought of an exciting trip to nowhere, a trip ................?
A.to the world
B.to the sea
C.to space
D.into the earth

If you decide to take the trip, you'll have............. a few months before the flight.
A.to get willing
B.to be hard
C.to get ready
D.to be unwilling

Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the followings.
It was boring there. There was no TV or radio so we had to make our ______ for ourselves.
A.entertainment
B.entertain
C.entertaining
D.entertainingly