题目内容

The earth is _____ by air, which makes up its atmosphere.

A. surround
B. surroundings
C. surrounding
D. surrounded

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Everything is developing so quickly in today's world that I am afraid I can't _____ all the changes.

A. keep up with
B. wrap up with
C. pick up with
D. hold up with

Mark wanted to finish his homework in two hours, but it _____to be harder than he thought.

A. turned up
B. turned out
C. turned down
D. turned in

_____ a degree, from a college education I plan to pursue higher learning, to begin a career, and to make history in my family.

A. Other than
B. Rather than
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The lost traveler was filled with fear when he saw a bear _____toward him.

A. ran
B. to run
C. was running
D. running