GMAT Sentence Correction (SC) | Re: In addition to having more protein -than wheat does, the

COMPARE '

besides english , I learn French

having good spirit, I learn gmat

in having good spirit, I learn gmat

the first is prepositional phrase, which dose not need to refer to subject of main clause

the second is participle phrase, which refer to subject of main clause.

the third is participle phrase with preposition, which, similar to participle phrase,refers to the subject of main clause.

this sc problem is the case 3

this problem is still a text book knowlege which requires us to
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