问题
选择题
21. The village is far away from here indeed. It’s ______ walk.
A．a four hour
B．a four hour’s
C．a four-hours
D．a four hours’
答案
答案：D
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21. The village is far away from here indeed. It’s ______ walk.
A．a four hour
B．a four hour’s
C．a four-hours
D．a four hours’
答案：D