After playing football for more than half an hour, the students took rest.A. a tenmin

After playing football for more than half an hour, the students took rest.
A. a ten--- minute
B. a ten minute’s
C. a ten-minutes’
D. a ten-minute’s

(答案→)A. a ten--- minuteB. a ten minute’sC. a ten-minutes’ D. a ten-minute’s解析：英语中两个或多个单词中间可以用短横线连接起来，起一个相当于形容词的作用，这类单词叫做合成词。其一般构成规则就是其构成单词一般都要用原形。句意:踢了半个小时的足球之后，学生们休息了十分钟。结合语境可知本句中合成词用作定语，故选A。

哦，回答的不错