A)Heavy floods. B)Safety concerns. C) Bad economy. D)Workers'strikes.
A) It is competitive with its numerous tourist destinations. B)It provides many job opportunities for French people. C)It is the biggest concern of the French government. D)It plays an important role in the nation's economy.
A) To carry out a scientific survey. B)To establish a new research station. C)To rescue two sick American workers. D)To deliver urgent medical supplies.
A)The darkness and cold. B)The heavy snow and fog. C) The biting winds. D)The ice all around.
A)By tying it to a door handle, B)By shaking it back and forth. C) With a remote control craft. D)With a full-sized helicopter.
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