Please do not disturb us when we are working.
A. interrupt
B. exchange
C. assign
D. deny
查看答案
You should focus your attention on one question each time.
A. originate
B. concentrate
C. repel
D. surrender
The malicious rumors compromised her good reputation.
A. realized
B. derived
C. endangered
D. released
The heart muscles contract to expel the blood.
A. stem
B. trickle
C. concern
D. shrink
She closed her eyes tightly in a vain attempt to hold back the tears.
A. useful
B. useless
C. frugal
D. slim