posted by Mary .
Is the following sentence grammatically correct, or do I need to make it into two sentences? Thanks.
I think that explains a lot, don't you?
Also, will you please check my grammar on these two items?
I think he enjoyed the fact that his prank had a two for the price of one effect.
Russ's book or Russ' book?
Thank you. I always appreciate your help.
Your first sentence is correct.
In the 2nd sentence, you need to put hyphens between all these words: two for the price of one
Russ's (because the basic form of the word is one syllable)