Most experts agree that washing hands regularly is a ______way to prevent the spread of many diseases.
A. powerful B. illegal C. painful D. awful
At the sight of the _________ scene, he was almost _________ to death.
A. frightening；frightened B. frightened；frightened
C. frightening；frightening D. frightened；frightening
The scientist knew nothing about the matter, because he was always _________ himself in his study.
A. burying B. devoting C. focusing D. concentrating
He said he _________ his work, and then we needed to wait for him for a little while.
A. just finished B. was just finishing C. had just finished D. was just finished
How pleasant the picture is to _________!
A. be looked at B. being looked at C. looking at D. look at
Jack went to college last year, _________ to return home until he achieves his goal.
A. determining not B. not determined C. not determining D. determined not
