交流语法题目啦，大家有空来看看,这厢有礼了

红豆绿豆我都爱UID: 2144748

1.In the house (was) a teapot and platter (that) had (once belonged) to Danielle's  grandfather, (which) he brought when he emigrated.

我选NO ERROR, 答案选(was),不明白为什么.a teapot and platter表示单数,后面从句又是过去,用WAS不是理所当然么?
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2.Even though the citizens of Westerville habitually complain about high property      taxes, they pay a lesser amount of taxes than citizens of surrounding tows.
A.as it is  
, K" m  s1 @3 kB.their taxes are the least among
/ i% y7 x+ Z1 c1 e6 g% CC.they were paying fewer taxes than
D.the amount of taxes they have to pay is the least of
E.they pay fewer taxes than

我选E,答案选B.先不说选E对不对，选B不是明显不对么,既不简洁,又不符合平行结构,疑惑ING,莫非是答案引错掉了?
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# W9 ?0 F& i- K4 O3.The prosecutor argued that anger and (a desire) for vindication (were not)          (sufficient enough) reasons (to justify) the crime.

: N) d) r. l. i我选a desire,答案选sufficient enough. 为什么呢?
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4.Like many of her predecessors, the mayor chose not to spend large sums ofmoney on a lavish inauguration ceremony.  
A.as it is
B.Like the ceremonies of many of her predecessors, the mayor
' R0 U, ?$ R. T5 c, y) SC.The mayor, unlike those of many of her predecessors,
D.Similar to many of her predecessors, the mayor's ceremony
( U8 n& m. _6 _' a3 `E.The mayor's ceremony, like her predecessors

我选A,答案选C.纵然C的逻辑关系更符合正常思维,但the mayor 和 those of many of her predecessors 不符合 unlike 的平行结构,按照新东方小胖的讲法就是引入了新的错误,怎么可以选C呢?盼解答!
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我和一起准备SAT的同学讨论了这几道题,都觉得很诧异,希望高手们可以指点迷津!