问题补充：
—We’ll have holiday next month. Will you go home?
—No. If I go home, I’ll have to take ride.
A. a one-week; seven days
B. an one-week; a seven day’s
C. a one-week; a seven days’
D. one-week’s ; a seven days’
答案：
A. a one-week; seven days
B. an one-week; a seven day’s
(答案→)C. a one-week; a seven days’
D. one-week’s ; a seven days’
解析：合成形容词的构成是数词-名词单数，其中间要用“-”连接。名词复数的所有格形式若以s结尾的只在单词的后面加“ ’”即可。
