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I have to go 。be busy doing sth/with sth忙于…11.science teacher 科學(xué)老師3. How’s your day? 你過(guò)得怎樣 4. the next day 第二天5. That’s for sure 那是一定的 6. difficult but interesting 既難又有趣7. finish doing sth 完成做某事 8. have math 上數(shù)學(xué)課9.year(s) old ……歲(年齡) ’s Day 兒童節(jié)15. Women’s Day 婦女節(jié) Year’s Day 新年 One=the first lesson第一課 Unit 91. 12.See you there在那兒見(jiàn)11. be sure of/about+句子。birthday party 生日聚會(huì) 8.basketball/volleyball game 籃/排球賽7. a good time/day=have fun過(guò)得愉快 old 幾歲,多大年紀(jì) :What day is it today?今天星期幾?B:It’s .5. +形容詞, 看起來(lái)怎么樣。sell sb sth 賣……給…… a look 看一看,瞧一瞧 sale 出售,廉價(jià)出售 sth. for sb.=buy sb. 某人買 pair/set of+復(fù)數(shù)作主語(yǔ)與pair/set一致:Can I help you?=Wh