1. The use of atomic energy will _____ the lives of coming generations.
A) revolve
B) revolutionize
C) resolve
D) reserve
2. The doctor _____ me to the dangers of smoking.
A) informed
B) alerted
C) warned
D) cautioned
3. All work and no play makes Jack a _____ boy.
A) monotonous
B) boring
C) tedious
D) dull
4. The _____ domestic product of this year is two times as high as that of last year.
A) coarse
B) crude
C) gross
D) raw
5. I may sense the enthusiasm from his youthful _____ voice.
A) vibrant