题目内容

The heart muscles contract to expel the blood.

A. stem
B. trickle
C. concern
D. shrink

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She closed her eyes tightly in a vain attempt to hold back the tears.

A. useful
B. useless
C. frugal
D. slim

The match was postponed to the next day because of bad weather.

A. delayed
B. paused
C. halted
D. resigned

The money I owed him and that he owes me cancel each other out.

A. enhance
B. reproduce
C. display
D. offset

He always wanted us to exhibit our work together.

A. swerve
B. skid
C. show
D. convert