what cleft sentence

[thanghnvn]

I have just learned a new pattern from a grammar book

what you do is to take me to the party.

what you do is take me to the party.

what you have done is taken me to the party

all above patterns are correct in formal english. A few days ago, there are gmatprep question, which has oa which is in the sentence 2 above and many persons think gmat is wrong.

I can not find that gmatprep question. anyone know that question, pls , post in this posting.

[jlucero]

I think we'll have to be a bit more specific to find this question. Sorry.