题目内容

Jack was just about to ________ the questions, when suddenly he found the right answer.

A. give in
B. submit to
C. work out
D. give up

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The company sells new cars with a wide ________ of prices.

A. range
B. level
C. extent
D. quantity

They have ________ a new video camera in their apartment.

A. arranged
B. dragged
C. operated
D. installed

Patriotism must be ________ upon the principle of great and great virtue as backing.

A. found
B. founded
C. depended
D. defended

Travelers have been questioned at the airports in an effort to detect ________ virus carriers.

A. unwilling
B. unwitting
C. undetermined
D. uninfected

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