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doing……怎么样atleast至少haveto必须,不得不有人称,数和时态的变化gotobedearly早睡觉want(sb)todosth想要(某人)做某事stayuplate熬夜,ahealthybreakfast一顿健康的早餐exercise运动,锻炼不可数名exercise练习,体操可数名词exercise运动,锻炼动词useoftheInternet网络的使用,名词性短语usetheInternet使用网络,动词性短语Hereis/are+sb
这里是……not…atall一点不,根本不goonline上网,去上网afterschool放学后begoodformyhealth对我的健康有益lastmonth上个月begoodfor对……有益begoodwith和……相处得好begoodat擅长gocampinginthecountry去乡下野营ninetypercentofthestudents90%的学生theothertenperc