However,in______recentyears,Niagara

发布时间：2020-07-09 19:40:24

However, in ______ recent years, Niagara Falls have e to be appreciated more for their natural beauty as ______ wonder of nature













A.不填; a












B.the; the











C.不填; the











D.the; a

网友回答

A解析in recent years近年来；a wonder of nature自然界的一个奇迹。
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