VI. There is a mistake in the underlined parts of each sentence. Identify your answer by circling the corresponding letter A, B, C or D and then correct it. (10 points)

1. That math problem is too difficult for him and his friends to solve it.
A B C D
2. I read something about Taranrino's new film on that magazine.
A B C D
3. It is advisable that one should have one's teeth checked regular.
A B C D
4. Norman doesn't know everything but he talks as if he knows everything.
A B C D
5. Building thousands of years ago, the ancient palace is popular with modern tourists.
A B C D