Asking about modifiers

[Ilu4ever888]

In my material for building skills for taking academic tests, there is a question I'm still not sure about :
There are ... more books that are beneficial to you.
A. so
B. many
C. such
D. much
In the answer sheet, the answer for this question is B.
But my English teacher said that D was correct and she explained that in this case,
"more" is the comparative form of the adjective "many" and we should use "much" as an adverb to modify "more".

However, some of my friends think that "many" can also be used in this case as a determiner (specifically as a quantifier). And so do I. In addition, I've read many stuff on the internet and seen this structure: " many more + plural form of a countable noun".

Could you explain more about this for me so that I can be sure about this problem?

Another thing I wanna ask is, in what case does "many" play the role as an adjective?
[I'm using Longman Dictionary of Contemporary English, and the word "many" can be an adjective.]
In my opinion, in the following sentence, "many" plays the role as an adjective.
"One job loss is one too many."
Is it right?
Could you give me more examples?

[Erik]

I think your teacher is wrong. "D" would not be used by a native speaker, despite the reasoning. Also, your usage of " I've read many stuff on the internet and seen this structure.." is not correct. Better to say "I've read much stuff [or, even better, "many things"] on the Internet, and have seen this structure..."

[Imaninja]

Ello,I've just found this place and thought i would join and say hello

I'm Eddy :)

[Cerberus™]

I agree with Erik, but this is a very interesting question, at least to me. According to conventional grammar, an adjective can only be modified by an adverb; since "many" is not an adverb, it should have been "much"; but unfortunately, only "many" is correct here.

Regarding this issue the three non-Nordic Germanic languages display their typical pattern:

German is quite consistent:
- Viel mehr Frauen (adverb) = *much more women.
- Ein viel groesserer Mann (adverb) = a much larger man.
- Ein ganz kleines Haus (adverb) = a very small house.
- Ein ganz grosser Mann (adverb) = a very large man.

English is inconsistent, but not ashamed of it:
- Many more women. (Adjective.)
- A much larger man. (Adverb.)
- A very small house. (Adverb.)
- A very large man. (Adverb.)

Dutch tries to be consistent, but typically fails, though in a different way:
- Veel meer vrouwen. (Adverb.)
- Een veel grotere man. (Adverb.)
- Een heel klein huis. (Could be either adverb or adjective.)
- Een hele kleine man. (Adjective.)
For this last sentence, some grammarians and some writers will force themselves to write "heel" (adverb) for consistency's sake, and some will even say it; but in general the adjectival form is naturally used.