"Shakespeare is known to have been an actor and playwright in one of leading companies of players at the end of 1580."
I think there ought to be "the" in "in one of the leading companies"?
"The liquid known to react with this substances is called an acid."
I would suggest that "an" is redundant here. It should be "is called acid"?
Last edited by ostap77; 04-Feb-2011 at 01:08.
Yes, I agree with you two. And, of course that "an" in the second acid is wrong. You are talking about the name of the substance (acid) not about one of the acids in the world.