Are you sure that boys are more _______ than girls?

A. act B. active C. action D. activity

Electronic music is a kind of music in which sounds are produced ________.

A. electron B. electric C. electronic D. electronically

Some species of rare animals are in ________ of extinction.

A. danger B. dangerous C. dangerously D. endanger

Buckingham Palace is a major tourist ________ in London.

A. attract B. attraction C. attractive D. attractiveness

She was the first in her family to enjoy the privilege of a university ________.

A. educated B. educational C. educating D. education

The children ___________ high grade at school.

A. achieve B. achievement C. achievable D. achieving

The problem of ________ among young people is hard to solve.

A. employment B. employee C. employers D. unemployment

How many ___________ took part in the 22 nd SEA Games?

A. competitors B. competitive C. competes D. competitions

Writer Ernest Hemingway is known for his __________language and his lively dialogue.

A. simplification B. simple C. simplistic D. simplicity

Scientists ________ in their opinions of how snow crystals originate.

A. difference B. differ C. differentiate D. differentiate