为什么A错了？

把highway和railway混在一起了

当发现谓语动词的主被动形态发生改变时，要考虑动作的主语能否发出这个动作

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mark

C的语义是分析技术激发人们的不情愿，语义不通，只会是人不情愿。

A 的问题是journalist use picture是状语，不是从句，也没有直接表明use picture会导致quality diminish, 无法跟后面的by late 1980s... 行程对比。

黑体1---thus。。。 however 黑体2 ，很明显however前后为opposite

this sentence will only make sense if the modifier is allowed to modify the preceding clause, which talks about holding water (because "holding more" actually makes sense).

glean information about the past

glean information about the past

dendrochronologists' failure ，不是方法者没考虑，是方法本身?
重点是放在 without adding any rings，所以是数量和年龄的不匹配

A错在哪里？ 。萧条时期学生基数难道不是更多吗？

plan 后接to do做定语

其中12,20易忽略是4的倍数，所以应该有两个2

很多时候我觉得我在做脑筋急转弯？

xxx is known to be

especially if it has worked well in the past是条件状语。状语和定语均属于修饰成分，均具有就近修饰的原则。本选项中距离这个条件状语最近的句子是when they do appear。但是，在逻辑上，该条件状语应该是be committed to的修饰语

* makes it likely to miss...
this doesn't work.
technically, this would mean that "it" - an unspecified entity - is likely to miss the signs.
if you use the "it is ADJ..." construction, and the verb has a specific subject, you MUST include that subject in the construction. it is likely that the executive will miss...

assumption 就是 support？
evaluation 就是weaken ?是不是？