GMAT Strategy

Thank you very much Ron. I got the point!

One thing I am confused about SC is that very often I thought the correct AC is also wrong, but might just be less significantly wrong than other ACs. Does this make sense to you? Can this type of weakness get improved by doing/reviewing problems, or it may suggest there are too many holes spreaded in too many areas in my grammar--I sensed that this might be true to certain extend, but somehow I managed to get 73% SC in my today's MGAMT CAT? In addition, not sure which AC is certainly wrong makes me going back and forth to compare which one is more wrong and that is the major factor costs my time.

Thank you!

Thank you, thank you Ron. I am talking about OG problems and the explanation provided by OG.

I run into many situations that OG explanations seem inconsistent to me--to be more accurate, I guess that might be one reason I thought sth wrong in the correct AC? Maybe these are the 'meaning' thing you pointed out? Here are some examples:

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OG10, SC#37, there is no 'and' btw the 'last' two items of a list in the correct AC? I thought the 'and' is required?
OG12, SC#3, MGMAT said(p210) this structure is wordy: 'it is...that...', I eliminated the correct AC exactly based on my memory on that rule. Instead I chose (C), but then OG says (C) is 'wordy and awkward' (no other fault though). So then why one kind of 'awkward' is acceptable, the other one leads to a wrong AC?
OG12, SC#14, I now understood that the correct AC is the best one and why (C) is wrong, but OG's explanation on (C) confused me cause I thought (C) was a case of 'omission of Although clause', isn't it?
OG12, #46, grammatically, I thought in the correct AC there should be an article 'the' in front of the 'construction and decoration'

OG12, SC#26, I remember there are several places when OG explains a wrong AC, it says 'which' didn't refer to the immediate noun before it, but here is the exact situation in the correct AC?

OG12, SC#50, the correct AC uses 'instead' while in the explanation for some other questions OG mentioned that ' 'instead' is awkward'; also in Q50, the explanation on (D) is that "recession must be followed by 'that' ", but I remember that the relative clause desc the obj can omit 'that', 'which' thing.
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For most of these problems, I now understood why the correct AC is the best one. But I hope, from the list above, you might come up insight on where I went wrong. Are the things above solid grammar, or belong to the vague area of meaning/concision in the GMC? Do I just memorize that situation like above can be very flexible? Should I read that much into OG's explanation? (*) --- Very often when the correct AC doesn't stand out from other distinguishing point and I have to rely and struggle on the confusing thing desc'd above, I can end up with wrong AC after spending lot of time. Or even worse, I simply eliminated the correct AC due to some explanations I remembered from OG. Such kind of confusion also costs me tons of hours in my study. In any way, telling a 'meaning' problem apart from a grammar one seems hard for me.

(*) Actually along this line I have a question on CR explanation as well--occasionally, I don't feel that OG's explanation on the wrong AC is to the right point. I mean the wrong one is wrong for some reason other than what OG points out. Am I right, or in such case I should go back and try hardER to understand OG's point?

Thank you!!

Thank you Ron! I saw the link you listed--you are an amazing teacher.

There are two fine points I am not quite clear about and I am going to continue on that threat (here, this one on MGAMT
https://www.manhattangmat.com/forums/pos ... 31&p=24246 ). If you have time, maybe you can help to further clarify. But the post you pointed me to is very helpful.


Thanks!