He set up in business（）his own and was very successful.
A、inC
「句意」他獨自一人開始經商，并且做得很成功。
「難點」onone‘sown是個常用的介詞詞組，意為“獨自”;ofone’sown表示“某人自己的(東西)”，如：Ihaveaflatofmyown.我自己有套房子。
Of course，（）most immigrants did not get rich overnight ， but the of them were eventually able to improve upon their former standard of living.
Frank almost never received any education ，（）?
The school is going the ________ mile to create the next generation of sporting stars thanks to its unique development program.
I long to alleviate __________, but I cannot.
Nancywassurprisedthattheyhave（），Theyseemedtobeahappycouple.
