is,are,has,have,havingTheaverageBritishfamily,which________smallerandricherthan50yearsago,________3.6members.
is、has
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Thiscarisveryexpensive.Youhavetopayhalfamilliondollars________it.
Helost________________parentswhenhewasachild.
preferred,prefers,is,are,was,were,willbe,shallbeDuringtheholidayweek,one-thirdofthestudentsinourclass________preparedtostayoncampusforstudywhilearoundtenpercentofthem________somemoresleepathome.
Hebecameasuccessfulactor________hisfatherneverwas.
WithanappropriaterelativepronounMybrotherspeaksEnglishfluently,________Idon’t.
