Thisisthemostbeautifulvillage_______Ivisitedtheseyears.
D
分析句子成分后发现， visit 为及物动词，所缺部分为宾语，所以应该选择关系代词。因为这里涉及到了最高级，所以只能选 that。
Ithasbeenfoundthatastrong________helpovercometheeffectsofdistraction.
Thestudentsarerequiredto________themainideasofthearticleintheirownwords.
Fishis________andexpensiveatthistimeoftheyearinthisarea.
Theoutlineofrooftopsandchimneys________againstthepalesky.