My grandpa has to take several pills to _________ high blood pressure.
A. counteract
B. hamper
C. cause
D. offer
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In our reading, we should always __________ for idiomatic expressions.
A. alert
B. be alert
C. are alert
D. alertly
_______________ copper, there are many other metals which are good conductors.
According to
B. In addition to
C. Due to
D. In contrast to
With the development of rural tourism, some problems arise which __________ the sustainable development.
A. reduce
B. check
C. reflect
D. affect
She had managed to pull herself together and, to her credit, continued to look upon life as a _________ experience.
A. positive
B. objective
C. negative
D. effective