While one cannot overlook Schwinger's ______comments about the Feynman diagrams, the efficiency of using these diagrams for perturbative calculations within quantum electrodynamics, is simply ________.
A) insightful…egregious
B) flattering…questionable
C) scathing…unacceptable
D) disparaging… undeniable
E) laudatory…remarkable

The given answer is D. But I would opt for E. What do you think?
Ohhehe Is the 'while' doing the trick here? Never mind, just thinking aloud. I know why it is D now. Emotion: smile
Hello Jeff

Is it a TOEFL vocabulary quiz? For me it's extremely difficult. Some words are rarely used in everyday English. I didn't know "disparage"(=belittle/discredit: antonym of 'flatter'), "egregious" (=very bad) and "scathe" (=damage). Furthermore this quiz seems to demand some knowledge of quantum physics. If you know who Feymann is, it would be greatly helpful to solve this quiz. As for 'while', it works here as a concessive connective nearly equal to "although".

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Howdy, paco. First, thank you so much for always offering me hands on those questions. Actually, it’s from verbal part on the GRE test. There is no vocabulary section on the TOEFL test. Emotion: smile But we do have a grammar section on the TOEFL test, that’s why I was always here before. And thanks to the great help offered by you people, I did good on the TOEFL test. Now I am challenging the GRE test. Actually, I just began to get my hands on it.

The GRE exam is divided into three parts: GRE AWA, GRE Verbal, and GRE Math. The GRE Math is easy for us. Generally, most of us will get full mark on this part, like we get on the grammar part on TOEFL. But Verbal part IS difficult for us, especially Reading and Sentence Completion (like this one I posted here).

So I sincerely hope you people can get me over the obstacle. Emotion: wink
Hello Jeff

Thank you for the reply. I'm surprised to know GRE verbal test is so difficult. Likely you need to have a vocabulary size of more than 50,000 words to get good scores in the test. But I'm sure you'll get it soon.

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Thank you.
By the way, what does "Toda la vida es sueño, y los sueños, sueños son" mean, and where ya from? May I ask?
Aha, this phrase is something like a Gypsy lyric.
It means;
"All the life is a dream, and dreams are (merely) dreams".

I was a vagabond wandering in Europe like a Gypsy when young.
And still now I'm wandering in my life that's nothing but a dream.

Where am I from? A tiny country in the East Asia, Japan.

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