Find the one mistake (A, B, C or D) in these sentences and then correct them: He (A) is known that (B) these questions are (C) so difficult that he (D) can’t answer them.
Find the one mistake (A, B, C or D) in these sentences and then correct them: He (A) is known that (B) these questions are (C) so difficult that he (D) can’t answer them.