来自鲍伯祥的问题
be,beenheissaid____abroad,butIdon'tknowwhatcountryhestudiedin.havestudied,不可以是tohavebeenstudying
be,been
heissaid____abroad,butIdon'tknowwhatcountryhestudiedin.havestudied,不可以是tohavebeenstudying
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2020-08-06 07:15