Unit2CloningⅠ
单项填空1.—Whatarethoseonthe________
—The________thathavefallenoffthebigtrees
A.roofs;leavesB.rooves;leavesC.roofs;leafsD.rooves;leafs2.Shealwaysdiffers________me________howtospendthevacation
A.on;withB.with;onC.at;withD.from;in3.Heundertook________theworkingconditions
A.improvingB.beingimprovedC.toimproveD.tobeimproved4.Tom,JackandRosewerenamedasassistantprofessors
Believeitornot,________threeofthemwereof________age
A./;anB./;theC.the;anD.the;the5.Iwasabouttogiveupmyefforttoworkonthepuzzlewhenagoodidea________me
A.beatB.struckC.attackedD.caught6.—Mom,mayIplaythecomputergamesforawhile
—________
Dadisinthestudy
A.HelpyourselfB.It’suptoyouC.BehaveyourselfD.Goahead7.Ourschoolforbids________,thatistosay,wearenotallowed________atschool
A.tosmoke;tosmokeB.students’smoking;smokingC.stud