题目内容
A new study proves a ________ walk every day is enough to keep people away from becoming fat.
[ ]
A.30-minute
B.30 minute’s
C.30-minutes
答案:A
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题目内容
A new study proves a ________ walk every day is enough to keep people away from becoming fat.
A.30-minute
B.30 minute’s
C.30-minutes