Hesetupinbusiness____hisownandwasverysuccessful.
C
「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。
He noticed the helicopter hovering over the field. Then to his astonishment, he saw a rope ladder _____ out and three men climbing down it.
The（） in Janet‘s character has hindered her froom advancement in her career.
Modern（）perhaps causes more problems than it solves.