6. He _______ to his roommate for being so rude yesterday.
A. worried B.doubted C.apologized D.dissolved
7. When you take a picture, you should _______ carefully to get a sharp picture.
A. focus B.object C.preserve D.fix
8. The Chinese food in the United States is usually _______ for American people.
A. exchanged B.altered C.modified D.cooked
9. There are _______ approaches to English teaching. But not all of them are equally efficient for our Chinese students.
A. double B.joint C.orginate D.diverse
10. He has a bad impression of his _______ in the office.
A. colleagues B.bullets C.barbers D.audience
6.C 7.A 8.C 9.D 10.A