题目内容
词汇用法
occasion
(1)_________ that occasion(介词填空), she was caught in the rain．
(2)He visited me _________(偶尔地)．
(3)I will never forget the occasions _________(用关系副词填空)my father encouraged me not to _________(灰心)in face of difficulty．
答案：
解析：
解析：
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(1)On (2)occasionally (3)when lose heart |
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