Lesson: Exceptions to the Touch Rule

Comment on Exceptions to the Touch Rule

Thank you for all your great videos and other resources!

Would you consider linking verbs also an exception to the touch rule. Since it is, "Joe feels bad" and the word "bad" is modifying "Joe" but not touching it? Or do I make a mistake here?
gmat-admin's picture

That's a great (and valid) point! Thanks for that.

Hi Brent,


Could you explain why C is the correct choice and E is incorrect one.

How do I know whether the present participle clause "traveling..." modifies waves and not interior, or crust, or even geologist.

In E this is solved by parallelism with that

waves that originate ...
waves that travel ...

What do you think?
gmat-admin's picture

Link: https://gmatclub.com/forum/to-map-earth-s-interior-geologists-use-a-netw...

The main problem with E is that we use the adjective SLOWER to modify the verb TRAVEL.
It should be: "...TRAVEL RAPIDLY through dense regions and SLOWLY through hotter rocks.

C) ... geologists use a network to chart waves that do X and Y, traveling most rapidly through cold, dense regions and more slowly through hotter rocks.

So, the participial phrase "traveling most rapidly through cold..." modifies WAVES.


Hi Brent,


I thought that this present participle must immediately be preceded by the noun it modifies "...winning prestigious awards in both London and Tokyo for his" which in this case is "The 19-year-old pianist and composer",

I picked E, do you know why it is incorrect?

Thank you in advance,
gmat-admin's picture

Link: https://gmatclub.com/forum/the-19-year-old-pianist-and-composer-performe...

We need BOTH X AND Y
And X and Y must be parallel

A. in BOTH London AS WELL AS Tokyo ... (we need BOTH X AND Y)
B. BOTH in London and Tokyo ... IN LONDON and TOKYO are not parallel
C. BOTH in London AND Tokyo...IN LONDON and TOKYO are not parallel
D. in BOTH London ADD Tokyo...LONDON and TOKYO are parallel (keep)
E. BOTH in London AS WELL AS Tokyo...(we need BOTH X AND Y)

Aside: Another correct structure is "both IN LONDON and IN TOKYO


Hi Brent,

I understand now why D is the best answer in terms of "BOTH" structure, but just as an aside,

What "winning prestigious awards" modifies. What is the rule I have to learn about present participle to not confuse myself because I know from your videos that present participle modifies nouns, but how to know whether it is ambiguous or not?

Thank you in advance,
gmat-admin's picture

The format of this sentence goes something like this:

The SUBJECT did some stuff, RESULTING in something else happening.

We have: The PIANIST performed his most recent work, WINNING prestigious awards ...

Ok, thank you,

I understand,

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