单项选择题

One of the main characteristics of the good language learner is the high ____________ in study.

A．proficiency
B．efficiency
C．sufficiency
D．deficiency
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单项选择题
You will have a marvelous ____________ of the whole island from the top of the tower.
A．scene
B．vision
C．scenery
D．view
单项选择题
Many birds and insects can build ____________ nests to provide shelter for their young.
A．glorious
B．elaborate
C．splendid
D．appropriate
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