高一英语短文改错题及答案1Agroupofscie
tistswerepla
i
gtogotocou
trysidetodoascie
tificresearchi
orderto81．________________fi
doutthatwhetherthee
viro
me
tofthecou
try
82．________________hadpolluted．O
arrival，theystartedtocheckthe
83．_________________aira
dwater．Tooursurprise，theyfou
d84．_________________howterriblythesituatio
was．Theycouldsee
85．________________theseriouspollutio
．Looki
tothecause，86．________________theypersuadethegover
me
ttopassthelaw87．________________toprotecte
viro
me
ta
dkeptthebala
ceof88．________________
ature．Noweverythi
ghascha
ged．Birdsare
89．________________si
gi
gwhiletreea
dgrassarewavi
g．90．________________
7Beforeleavi
gtheclasstheteacherMissWhite
saidtoherclass