I found ________ to answer all the questions within the time given.
A、nopossibilityD
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Iknowitisn’timportantbutIcan’thelp________aboutit.
Thosewho’dliketovisittheexhibition________(sign)yournameshere.
Ifound________toanswerallthequestionswithinthetimegiven.
Wooddoesnotconductelectricity;________.
Thefloordoesnotlooksobadwhen________(sweep)clean.
