题目内容

Once you have had the disease you are _______ from it for the rest of your life.

A. rid
B. immune
C. deprived
D. void

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To survive in the intense trade competition between countries, we must _______ the qualitiesand varieties of products we make to the world market demand.

A. harness
B. improve
C. guarantee
D. gear

With so many areas of woodland being cut down, a lot of wildlife is losing its natural _______.

A. region
B. kennel
C. habitat
D. neighbor

Albert Einstein's hair looked wild as if _________.

A. electrified
B. to electrify
C. being electrified
D. to be electrified

The fossilized remains of a type of came _____ a dog have been found in the Bad Lands ofSouth Dakota.

A. no smaller than
B. not smaller than
C. no larger than
D. not larger than

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