题目内容

14.The audience were__________by his brave behavior.

A. moved
B. removed
C. moving
D. effected

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15.Without any word , she just__________into the distance.

A. started
B. stared
C. saw
D. looked

16.The__________of this machine is simple.

A. operating
B. replace
C. protein
D. operation

17.The gas explosion was really__________.

A. frightened
B. frightening
C. fright
D. fighting

18.Edison__________the electric bulbs over one hundred years ago.

A. found
B. discovered
C. thought
D. invented

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