11.The water here is not good, so he's drinking beer__________.
A. instantly
B. instinct
C. instead
D. intend
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12.Though I can't understand what he said, he explain it to me__________.
A. patiently
B. terribly
C. cheerfully
D. reasonably
13.He seldom learns, but he can__________the exam every time.
A. past
B. finish
C. complete
D. pass
14.How much money do you__________each week?
A. cost
B. use
C. take
D. spend
15.The waters of the lake were so__________that it looked like glass.
A. silent
B. calm
C. still
D. quiet