Hesetupinbusiness（）hisownandwasverysuccessful.
A、inC
「句意」 他独自一人开始经商，并且做得很成功。
「难点」 on one‘s own 是个常用的介词词组，意为“独自”;of one’s own 表示“某人自己的(东西) ”，如： I have a flat of my own. 我自己有套房子。
TheBentPyramidoutsideCairo__________ancientEgypt’sfirstattempttobuildasmooth-sidedpyramid.
Modern____perhapscausesmoreproblemsthanitsolves.
U.S.News____________rankingsofcollegessince1983.Theyareaverypopularresourceforstudentslookingtoapplytouniversitycampus.
At______,photographyisachemicalprocess,duringwhichalight-sensitivematerialisalteredwhenexposedtolight.
_____atinthisway,thesituationdoesn’tseemsodesperate.
