Mr. Smith is in good health now for it is quite a long time since he __________.
A、notsmokedB
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Onewaytounderstandthousandsofnewwordsistogain__________goodknowledgeofbasicwordformation.
Shewouldratherhavearoom__________thansleepwithhersister.
________,thefirstsettlersfoundinNewZealandmanystrangebirdsandanimalsthatexistnowhereelseintheworld.
AnA4sizedpanel(太阳能板)putontothebackofajacketcosts__________US$15.Itcould__________acellphoneduringasummerwalk.
Ourteacher__________ustopractiseourspokenEnglishasoftenaspossible.
