Have you done something____today.
A. slow
B. special
C. simple
D. short
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Please take this medicine____a day and have a good rest.
A. twice
B. two
C. second
D. twos
He is late for school; he is always on time.
A. often
B. sometimes
C. never
D. usually
英汉互译:stomachache_______________
英汉互译:toothache__________________