單項(xiàng)選擇題（）every day for 20 minutes.
A.Exercise
B.To exercise
C.Should exercise
D.Exercising
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1.單項(xiàng)選擇題I tried（）the book in a few days, but actually I couldn't, just because of too much work for me.
A.finish
B.finishing
C.to have finished
D.finished
2.單項(xiàng)選擇題Although I am a good swimmer, I don't like（）in the sea.
A.swim
B.swimming
C.to be swimming
D.to go to swim
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The only way to conquer a fear is to face it, and doing so as frequently as possible.
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It"s no good learning English without practice.
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