- 问题详情:完形填空。Ithinksmilingisasimportantasing_1__sunshinebecauseitcanmakepeoplehappyandhaveagoodyouaren'thappy,youcansmile,andthenyouwillfeel_2__.Someonemaysay,“Idon'tfeelhappy.”ThenIwouldsay,“Pleasesmilewhenyouareunhappyorplaywithyourfriendshapp...
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