竟然选了B，Elizabeth起草的是declaration。C改变了意思，

比较的是percent，要用less，和employment costs rose in the year that ... 比较，看清比较对象

gear sth to/toward sb/sth, 这里doing动名词形式，不跟to do。使适应于... / 旨在...

10000*（1+0.4*0.8），注意问的是全部的金额

There's also the brute force method, which doesn't take that much time here.

Amy's grade is 90th percentile, meaning that she outperformed 90% of her classmates. That means that she outperformed 72 of her classmates.
She also outperformed 81 of the students in the other class (note: not 80, because Amy herself is not in the other class).

This means that she outperformed 72 + 81 = 153 of the combined 180 students in the two classes.
Since 153/180 = 0.85, she outperformed 85% of the students in the combined pool, putting her in the overall 85th percentile.

1.the two MAIN VERBS in the sentence are "call" and "attract".
2."instead of" is generally restricted to NOUNS.
"rather than" can be used for essentially ANY part of speech at all.
3.SUBJECT + ACTIVE VERB + BY + NOUN is generally incorrect.**
SUBJECT + ACTIVE VERB + BY + VERBing is generally correct, if "VERBing" is the method or process by which the ACTIVE VERB is carried out.
SUBJECT + PASSIVE VERB + BY + NOUN is an absolutely fundamental form, if the NOUN is the thing/person that did the action to the SUBJECT.

Once viewed as a sign of desperation, downsizing is now viewed as a signal that firms are serious about competing in the global marketplace;

1. if the subject of a verb is unknown or irrelevant, use the passive voice.
2.In the problem at hand, the original sentence, along with answer choices B and D, indicate that scientists removed "a synthetic growth hormone" from cadavers. This is nonsensical, as something synthetic, by definition, does not come from a natural source. Thus, A, B, and D can be eliminated based on their lack of clarity.
排除掉ABD，CE里面比最优，E: "before learning"修饰的是scientists,和主句主语矛盾。

1. regard X to be Y ❌
regard X as Y ✅
2. 比较平行 that of 不能少，排除ABE

from that of him = from his own

'to be sighted' is better for at least two reasons.

(1) 'first NOUN to be VERBed' is generally the preferred form in discussing the results of human efforts/actions/interference/perception/etc., while 'first VERBed NOUN' is generally used to indicate inherent qualities of the noun.
for instance, the following sentence is preferred:
henry bishop was the first musician to be knighted by a british monarch. --> knighting is performed by humans
the following is NOT preferred:
henry bishop was the first knighted musician in britain. --> this makes it seem as though being 'knighted' is an inherent quality with which henry bishop was born, or that he acquired it naturally/accidentally in some other way

(2) the word 'sighted' means 'having the sense of sight', so this sentence also contains the amusing alternative interpretation of referring to a pulsar that can actually see.

主语是blending，borrowing images表示这件事，和前面不平行

E中that they are scheduled to collect是day的定语从句，变成了collect day。
而且要想they指代packages，也没有be collected，肯定不成立！D意思没有歧义

通常，后置定语描述的是名词的暂时属性，前置定语描述的是名词的永久属性或固有属性

(e) "what the effects" is ungrammatical.
also, in constructions of this sort, "what" is generally redundant / unnecessary; it's better merely to say "to investigate X" rather than to say "to investigate what X is" (or other such wordy construction).

ab,bc,cd表示的不是弧长，是直线长

1. Ron: "immune from" means free of exempt from (eg. immune from prosecution), whereas "immune to" means not susceptible (eg. immune to chicken pox). In this case, the ozone layer was considered not susceptible to human influence. Thus, "immune to" is idiomatically correct.
2.在we have now realized已经是现在完成，意味着在过去某个时间点之前我们都以为ozone是 immune from human influence，自然应该用过去完成时态。
3. it appeared后面加从句it blah blah是redundant，appear作为系动词，后面可以直接加形容词做表语。这样最为简洁清楚。

如果选了E选项反而说明the poll was inaccurate了，不符合题意

be subject to 经受遭受某件事情的主语应该是 coyote，而不是ability。
expand the range, 前文没有对应range不能用the

land values are increasing ≠ land values are high