【正文】
_________ _________ ______. 。 Unit 13 We’re trying to save the earth! 一.根據(jù)漢語意思完成句子 1. 你以前聽說過這個人嗎? Have you ever _____ _______ the person before? ? ________ the chair ________ __________ wood? 。 The house he lived in before ________ _________ ________ last year. 。 He _____ ______ _________ in the h