11. Not only are mothers not paid but also most of their __________ or difficult work is unnoticed.
A. fashiounable
B. boring
C. bold
D. interesting
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12. If you make a(n) __________ to do something, you try very hard to do it.
A. effort
B. note
C. effect
D. profit
13. With computer you can watch the latest movies in the __________ of your own home.
A. face
B. value
C. company
D. comfort
14. Ater high school, I'd like to go to college and __________ in business administration.
A. master
B. major
C. lead
D. maintain
15. The conference is a good place to __________ information and exchange ideas.
A. shape
B. market
C. share
D. change