题目内容

We must ________ on the amount of time we use on this project.

A. cut off
B. cut down
C. cut in line
D. cut both ways

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We have to be very patient with this experiment. It will take time for some effects to ________ clearly.

A. clear up
B. build up
C. break up
D. show up

Perhaps there is a(n) ________ of truth in both theories, but few of us would ever have the opportunity to find out.

A. lump
B. section
C. element
D. substance

Be careful when you get along with her because she is known for her short ________.

A. mood
B. emotion
C. feeling
D. temper

It seems that wearing less formal clothing to school and work is becoming a(n) ________.

A. goal
B. trend
C. campaign
D. occurrence