The teachers said his work was _____ but there was still room for improvement.
A. satisfied
B. satisfactory
C. grateful
D. gratified
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At midnight, he drove through streets ____ of traffic.
A. empty
B. lacking
C. lack
D. crowded
His time at university was the most ____ period of her life.
A. eventual
B. enduring
C. eventually
D. eventful
He was cut ______ in his prime by cancer.
A. off
B. down
C. out
D. up
In the future, the discovery which will most change the lives of people, most affect the health of the world, and ______ the drug industry is the cure for the common cold.
A. most change
B. most changing
C. with most change on
D. most change of