27．As Senior 3 students it is important toa good state of mind.A. keep upB. stick withC.

问题补充：

27．As Senior 3 students, it is important toa good state of mind.

A. keep up

B. stick with

C. attend to

D. tie up

答案：

(答案→)A. keep up

B. stick with

C. attend to

D. tie up

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