People in modern times are trying to have a varied and balanced _______ to improve their living quality.
A. food
B. diet
C. risk
D. health
My grandpa has to take several pills to _________ high blood pressure.
A. counteract
B. hamper
C. cause
D. offer
In our reading, we should always __________ for idiomatic expressions.
A. alert
B. be alert
C. are alert
D. alertly
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