He set up in business____his own and was very successful.
A、inC
「句意」他独自一人开始经商，并且做得很成功。
「难点」onone‘sown是个常用的介词词组，意为“独自”;ofone’sown表示“某人自己的(东西)”，如：Ihaveaflatofmyown.我自己有套房子。
She’swornhisdesignson__________occasionsfromredcarpetstomoviepremieres.
Thebackgardenofourhousecontainsalawn，____verypleasanttositoninsummer.
Joseph was very lucky____with his life ; he almost did not get out of the room.
Aleading___________intelligenceandoperationscompanyhasreleaseditsanalysisofworldwidereportedincidentsofpiracyandcrimeagainstmariners.
My mother was determined to help those in need and she would have been immensely proud of what has been achieved these last 20 years. The italicized part in the sentence expresses _______.
