问题补充:
39.Since she was badly ill, her friend visited her .
A. every other day
B. every each day
C. other every day
D. every two day
答案:
(答案→)A. every other day
B. every each day
C. other every day
D. every two day
解析:every +数词可构成表示周期性的短语:every other day每隔一天; every three weeks每三周(每隔两周)。