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herfatherdied．Re
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．48．Whichofthefollowi
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gtothepassageA．Thewriterlear
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ee．B．Thereare143membersi
thestatio
．C．Re
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gso．49．Whatdoesthewriterthi
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g50．What’sthebesttitleforthepassageA．ATrueHeroB．ABusyVolu
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somecitiestherubbishiscollecteda
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tothesewagesystem．TheThesewagesystemtakesawaytheusedwaterfromtoilets，bathtubsa
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factorieswherethi
gsaremadeofmetal．Thefoodpartsofrubbishareputi
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gcalledhumus，whichlookslikeblackearth．isrichwiththeki
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dhelpmakethemgrow．51．Youca
mostprobablyreadthepassagei
________A．ascie
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ideaofthepassageis________．A．toletusk
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the
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gsoutofrubbish53．Theu
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thepassagemea
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gtothepassage，thefoodpartsofrubbishca
beusedagai
________A．tofeeda
imalsB．tofeedpla
tsC．tobuildahouseD．tomakemachi
es55．Howshouldwetakecareofausedmetalboxaccordi
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