- 问题详情: (09·天津)ThefirsttimeIremembernoticingthecrossingguardwaswhenhewavedtomeasIdrovemysontoschool.He16mewithapuzzle----allbecausehewavedtomelikesomeonedoes17seeingaclosefriend.Abig,18smileaccompaniedhiswave.ForthenextfewdaysItriedto19hisfaceto...
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