单项选择题

Applicants for the Olympic volunteers must be able to______excellent services to meet the demands of the Games.

A.apply
B.make
C.contribute
D.use

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The teacher is very______to the needs of her students and she can adapt her teaching very flexibly.

A.significant
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Parents should cooperate with teachers and ______themselves in their children’s education.

A.get
B.invole
C.find
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