This is the most beautiful village _______ I visited these years.
A、whichD
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。
________，hehadnotimetorest.
Duringthepasttwodecades,researchhas________ourknowledgeofdaydreaming.
That proposal is essentially irrelevant ________ the issue at hand.
I understood from her that you undertook other important work ______.
Thatproposalisessentiallyirrelevant________theissueathand.
