大学英语预备级2-1求大神帮助6.IfindEnglishspelling____.A.tobedifficultB.difficultC.bedifficultD.it’sdifficult7.Youmustexplain____howtheysucceeded____theexperiment.A.ofus;forB.atus;atC.tous;inD.forus;to

　　大学英语预备级2-1求大神帮助

　　6.IfindEnglishspelling____.A.tobedifficultB.difficultC.bedifficultD.it’sdifficult7.Youmustexplain____howtheysucceeded____theexperiment.A.ofus;forB.atus;atC.tous;inD.forus;to8.It’salongtimesincehelefthishometown,____A.didn’theB.hadn’theC.wasn’titD.isn’tit9.Don’tgetoffthebusuntilit____.A.willstopB.hasstoppedC.won’tstopD.hasn’tstopped10.Suchpeople____youtalkedaboutareoftenseen.A.whoB.asC.whomD.that