to be 和is political opposition平行.晕～

本题的flow out为什么不是单数形式的flows out 呢，主语不是单数的population吗

not so much A as B (A/B平行)

7 intact statues 不是part of the fragments so A/D/E错
there's no "possible workshop", possible的是"workshop where statues were reproduced"

哎，只有我这sb把x当成一个已知数

hopefully meaning "i hope that/let's hope that". This is an informal expression, and is generally avoided in writing.
Correct version: it is hoped (as opposed to hopefully)
such as 后面接名词

dated samples to be 3.47 years old vs. samples was dated at 3.47 years old
划线部分的主语是rock samples, 而不是dinosaurs!!!!

核心词的问题！！！A vs. E

and 连接的两个 waterlogged latex balls和representations of ballplayers 表明后面attest要用复数

specially vs. especially

答案B里面有represent和provide 平行，用and连接
答案E as a return on 不是换取的意思，in return for

Deduction 演绎推断

网格路径问题
从X到Y必须经过5横3竖，相当于8个里面选5个，横向路径确定，竖向自然就确定了，C85=56

A: yet discovered修饰evidence，且yet做adv修饰discovered,表still/already/until now ；后面of也修饰evidence，evidence of sth，……的证据，这里将yet discovered放在前面是因为后面的sth非常长，让人搞不清到底它到底在修饰谁

截距一般表示为正数，所以在X轴上的交点的横坐标为负也满足

错选D。
考查了“动名词和不定式的区别”
the ability身后只能加不定式to do而不能加介词短语of doing。这点考查了“动名词和不定式的区别”。用之于本题，例如我们说：
James have the ability to finish GMAT.
在例句开始的时候，显然詹姆斯还没有完成GMAT呢，否则我们就说的是一句废话，因为人家都已经完成了，当然是有能力了。由此可知，ability的定语只能用不定式而不能用介词短语。

错选A 独立主格
独立主格结构和其主句之间没有语法关系，也就是说，我们无从得知immobilize这件事是否讲的是the body's inflammatory response。相反地，如果是用in which widespread swelling and stiffness immobilize the injured area，那么先行词the body's inflammatory response可以在该从句中充当状语，即，widespread swelling and stiffness immobilize the injured area in the body's inflammatory response。

x+y/2=6

只是ratio不用具体的值

ratio=20%/（1-60%）