finishedfinishhasfinishedHe…h(huán)ishomework.havefinishedPRESENTPERFECT–notimereference(theresultismoreimportant)gonegowentWe…toaconcertlastweek.havegonePASTSIMPLE–signalword“l(fā)ast…”(ittellsuswhenithappened)hasseenhaveseensawI…Lindaatthecinemayesterday.seenPASTSIMPLE–signalword“yesterday”(ittellsuswhenithappened)has…eathas…eatshas…eatenShe…already…breakfast.has…atePRESENTPERFECT–signalword“already”(forarecentlyfinishedaction)hasleavehasleftleftBob…fiveminutesago.leavePASTSIMPLE–signalword“…ago”(itisafinishedpastaction)Did/arrivedDid/arriveHave/arrived…MikeandSam…fromschoolyet?Has/arrivedPRESENTPERFECT–signalword“yet”

(weexpectsomethingtohappensoon)werehavewashavebeenI…onholidayssinceFriday.wasPRESENTPERFECT–signalword“since”

(foranunfinishedpastaction)have…spokenspeakhas…spokenMyteacher…just…withmyparents.spokePRESENTPERFECT–signalword“just”(forarecentevent)hasn’tgetuphaven’tgetupdidn’tgetupHe…earlythismorning.didn’tgotupPASTSIMPLE–

“thismorning”isacompletedpastperiod(it’sprobablyaftermiddaynow)has…boughthave…boughtdid…buyWhen…she…anewcar?did…boughtPASTSIMPLE–wewanttoknowwhensomethinghappenedHas…h(huán)adDid…h(huán)aveHave…h(huán)ad…youever…acaraccident?Did…h(huán)adPRESENTPERFECT–signalword“ever”(forpastexperiences)havemethavemeetmetI…mywifein2010.meetPASTSIMPLE–signalword“in2010”(forafinishedpastaction)課堂懲罰小游戲點擊開始/暫停大冒險：深情親吻教室墻壁10秒。我是淑女：將3本書放在頭頂，學模特走臺步，旋轉(zhuǎn)一圈后走回來，如果書本掉了，重來動作挑戰(zhàn)：左手捏住右耳，右手抱住左腿，原地轉(zhuǎn)圈，左3圈，右3圈，然后再金雞10秒不倒。模仿秀：模仿這段魔性的笑聲夸口秀：說3句夸老師的話，說5句夸同桌的話，不得重復天旋地轉(zhuǎn)：站在講臺上，閉上眼睛，左轉(zhuǎn)五圈，右轉(zhuǎn)五圈，再睜開眼睛，回到自己的座位模仿秀：模仿視頻中的舞蹈哭笑不得：哭笑不得，先大笑5秒之后，忽然又大哭5秒，反復3次動作挑戰(zhàn)：做一個自己最嫵媚的動作，直到大家都滿意為止繞口令挑戰(zhàn)：四和十，四和十，十和四，十四和四十，四十和十四。說好四和十得靠舌頭和