问题描述：
6.hisparentsdied,__himnothing__asmall
house.
a.lefthimb.leaving,exceptc.leaving,only
d.toleave,but
7.howlongwillittaketoswim__the
river?
a.overb.acrossc.throughd.in
8.thefather__hissontostopsmoking,but
hedidn'tkeephisword.
a.madeb.promisedc.gotd.had
9.myfatherusually__abustoworkinstead
ofgoingbytaxi.
a.takesb.carriesc.getsd.sits
10.intheeveningienjoy__bythe
fire__violin.
a.tosit,playb.tosit,playingthe
c.sitting,playingd.sitting,playingthe
