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。
Professor Johnson is said _____ some significant advance in his research in the past years.
Mary tiptoed over and took the clock away because she hated to hear it（） when she was trying to go to sleep.
_____ your timely advice,I would never have known how to go about the work.
AlthoughSPanish，heattendedthecourse.
Ifnot_____withtherespecthefeelsduetohim,Jackgetsveryill-temperedandgrumblesallthetime.
