4、we go on working? —Yes, ______ I prefer to have a rest. A. when B. if C. because D. though()31.Linda______ thedancingclubsinceshehadababy.Shedancesverywellnowandhasgoodhealth.A.hasjoinedinB.hasbeeninC.joinedinD.hasbeen()32.Lucyisdoingmuchbetter____
7、网ZXXK]A.canB.can’tC.mayD.must()38.I don’t think_______possible to master a foreignlanguagewithoutmuchmemorywork. A. this B. that C. it’s D. it ()39.Wedon’tallow_____inthisroom.A.smokingB.tosmokeC.peoplesmokingD.peopletosmoking()40.Hissisterreadthepictur