-（）do you like the new play？
-It’s good and interesting.

It is （）to teach a kid the way to solve a problem than tell him the solution directly.

A.helpful
B.more helpful
C.the most helpful
D.the more helpful

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Mary （）on shoes when she （）them.

A.tries；buys
B.tries；buies
C.trys；buys
D.trys；buies

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