Veryfewpeopleunderstoodthiscontract,______wasveryobscure.
B
the language of which 引导非限定性定语从句，并在定语从句中做主语。句意为：没有几个人懂这份合同，合同的用词含糊不清。
重写句子：Attheinternationalmuseum,youcanfindancientEgyptianart.YoucanexploreAfricanartifactsthere.Youcandiscoverbeautifultextilesfromaroundtheworldthere.(parallelstructure)
重写句子：We lived in a small town when I was a small child. We moved to Shanghai later. My father landed a better job there.(compound-complex sentence)
Havingdecidedtorentaflat,we________contactinghousingagenciesinthecity.
Iwasreallyanxiousaboutyou.You______homewithoutaword.