1-Whoshouldberesponsiblefortheaccident?-Theboss,nottheworkers.Theyjustcarriedouttheorder（astold)为什么不能选“astheytold"?2Let'slearntousetheproblemwearefacing(as)asteppingstonetofuturesuccess为什么是as?

　　1-Whoshouldberesponsiblefortheaccident?

　　-Theboss,nottheworkers.Theyjustcarriedouttheorder（astold)为什么不能选“astheytold"?

　　2Let'slearntousetheproblemwearefacing(as)asteppingstonetofuturesuccess

　　为什么是as?有什么规定吗？

　　3Leaveyourkeywithaneighbor(incase)youlockyourselfoutoneday

　　为什么是”in

　　4peterreceivedaletterjustnow(saying)hisgrandmawouldcometoseehimsoon

　　填says可不可以？

　　5Thefactthatsheneverapologized(says)alotaboutwhatkingofpersonsheis

　　为什么填“says”？

　　6Thegrowingspeedofaplantisinfluencedbyanumberoffactors,(mostofwhich)arebeyondourcontrol.which是什么用法？为什么不能是“mostofthem"?

　　7When(weare)asked,hegavegoodadvice括号内不应是过去时吗？

　　8Ihaven'tseenAnnfor(so)longthatI'veforgottenwhatshelookslike.

　　可不可以是”too"?