初二英语首字母填空
Peoplehadtow_____'smog-masks'overtheirfaceswhentheywentout.InDecember1952,averythickdarkc_____camedownoverthecity.Itwasthew_____songLondonhadeverhad.Nearlyfiftypeoplediedinroadaccidents.Manypeopleb_____veryunhealthy.Afterthreeweeks,thesmogbegantol_____slowly.LifeinLondoncamebacktonormal.Butnotlongafterthat,over4,000peoplediedasar_____ofthesmog.In1956,theBritishs_____burningcoalinhousesandfactoriesinthecity.London'sairgotcleaner.
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