单项选择题

Passage Two

A. Uses of cold sea water.
B. Irrigating desert areas.
C. Techniques for preserving the environment.
D. Techniques of cultivating plants.

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单项选择题A. On the 6th of December. B. On the 7th of December.C. On the 26th of December. D. On the 27th of December.

单项选择题A. To other European countries.B. To the remote areas and suburbs.C. To the natural parks for birds.D. Back to their nests.

A. To other European countries.
B. To the remote areas and suburbs.
C. To the natural parks for birds.
D. Back to their nests.

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