Mark the letter A, B, C or D o...

Câu hỏi: Mark the letter A, B, C or D on your answer sheet to indicate the sentence that best combines each pair of sentence in the following questions.

A. The book which is very interesting my brother bought yesterday.

B. The book which my brother bought it yesterday is not interesting.

C. The book my brother bought it yesterday is very interesting.

D. The book which my brother bought yesterday is very interesting.