by ZoeZ42 Tue Jul 05, 2016 1:27 am
dear instructors,
i am not clear about the constructure if put correct choice (B) into the sentence.
Since the 1930's aircraft manufacturers have tried to build airplanes with frictionless wings,wings so smooth and so perfectly shaped that the air passing over them would not become turbulent.
the green words "since the 1930's..... with frictionless wings", ---- clause, imply the timeframe,
the bold words "wings so smoth and so perfectly shaped" ---- subject of the sentence, with a modifier "so smooth and so perfectly shaped" , this modifier modifies the subject "wings",
also, here is an idiom ""so ...that..."
the black words "the air passing over them would not become turbuent",----- result of the smooth and perfectly shaped wings, i think it is a clause too.
so... i have no ideas that what's the main verb of the whole sentence..., please help...
for example,
you worked so hard that you pass the GMAT.
here, subjeect-- you, verb -- worked, and result of the sentence is you (subject) pass (verb) the GMAT...
hoping won't wait for a long time reply
thanks in advance
have a nice day
>_~