I go to the cinema .
A. every three week
B. every other weeks
C. each three weeks
D. every third week
网友回答
A. every three week
B. every other weeks
C. each three weeks
(答案→)D. every third week
解析：考查数词。表示“每隔三周”可以用every three weeks或every third week。句意：我每隔三个星期去看一次电影。