10. A. business B. children C. work D. office
9. A. about B. of C. in D. above
8. A. interesting B. same C. true D. good
7. A. neither B. either C. all D. both
6. A. study B. do C. stay D. shop
5. A. because B. if C. but D. so
4. A. spend B. stay C. work D. have
3. A. friends B. teachers C. classmates D. parents
2. A. message B. call C. report D. letter
1. A. serious B. wonderful C. necessary D. thankful