They ________ a group of volunteers to help those in need.
A. organizes
B. organizing
C. organized
D. are organized
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After he left school, he tried his hand at a ________ of jobs: taxi driver, shop assistant and coal man.
A. varieties
B. various
C. variety
D. vary
He ________ his spare time to help the old people in the neighborhood.
A. gave in
B. gave up
C. gave off
D. gave on
The book offers some __________ advice to any new employee.
A. worthwhile
B. worth
C. worthful
D. worthless
While she was _________ losing her life, she was still concerned about her fellow sufferers.
A. endanger
B. in danger of
C. dangerous
D. out of dangerous