What conclusion can we draw from this passage?
A. People need a standard to guide their eating.
B. Proper eating is the key to one's health.
C. Women should pay more attention to what they eat.
D. The balance between food and fitness is hard to maintain.
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To their disappointment, there are no textbooks ______ for the students of Class Two.
A. possible
B. preferable
C. considerable
D. available
While Tim was walking in the street, he came______an old classmate of his.
A. into
B. across
C. onto
D. up with
Please see to it______no one comes in without identification.
A. that
B. lest
C. when
D. which
Only those who are______of their lagging behind are more likely to catch up.
A. awake
B. visual
C. aware
D. illusive