Eliot is right. I looked at it again. I think I took it at first sight for "where" which can be also used here to form a attributive clause. "whose" is possessive case of "who". So if you want to use "which", "in" needs to be added before it.

The answer is yes. You may either one. But grammatical explanations would be different , and the stress in meaning is slightly different.

That is the characteristic of English-education in China, for we have been taking British English as the standard one. Traditionally, "less than" is used to compare uncountable nouns, whereas "fewer than" to compare countable nouns. Yet in spoken English, limit seems not to be so strict.

Hm, it's a question often causing fierce debates in big economic forums. My opinion, you'd better put it up on the forums.

Answer is D. Tip is the question refers to the usage of negative reply to a question.

Actually "把sth."can be a prepositional phrase as an adverbial and the predicate is "给", though some grammar persons might not agree with me. And some disagreement does leave room to be quibbled about. It's far beyond me to judge them right or wrong. But there is a problem I'm sure in them that some Chinese teachers borrow English grammar once in a while in teaching non-native Chinese speakers, though subconsciously. The reason is our Chinese as a language still has room to be analyzed and generalized. But there's also an embarrassment that Chinese language borrows a large amount of expressions from English. Sorry, it seems a little astray from the topic.

There are some mistakes in the sentences. "面值..."here is prepositional phrase which should be followed by numerals together to form an attribute, i.e. 面值50的(noun,e.g. 钞票/美元/人民币,etc.). The case it can be a noun is when you want to show how much does a note is worth, like "这张(/钱币)的面值是50元". And you'd better add "吗" at the end of the second one. Secondly, in this case "拿来"is equal to 拿 with "来" omittable in spoken speech. And be careful, the object is different in each sentence. The first one is "me“ with "拿张面值*的人民币" being the supplement, and the second one is just 钱币(could be any kind of note). Thirdly, if you didn't add "吗" to the second one, it 'd express surprise, doubt, kind of things. Don't be frightened by my explanation. Chinese is totally unlike any other alphabetic language. Please don't simple compare English grammar to Chinese one. Secrets lie mostly in word order. I hope others learning Chinese on italki will find my answer helpful to them.

I'm interested in cosmology in general way. It seems there is a trend that more people hold belief in science in the post-industrial society and faith in God fades to some extent, though never ever disappearing, definitely I believe. The power held in those moral hands indeed gives them great confidence. Also some people are inclined to be governed, of course not regarding right and wrong. But that may lead to, I gather, another form of empire, of authoritarian, another big brother. But some people are meant to be liberalist, which may result in certain equilibrium. I don't know, but anyway, I like science.