Mark the letter A, B, C, or D to indicate the correct answer to each of the following sentences.

Câu hỏi

There are many factors that ________ to global warming.

A. leads

B. refer

C. mention

D. contribute

Đáp án
D. contribute

Câu hỏi thuộc Bài tập:

UNIT 10: THE ECOSYSTEM - VOCABULARY - Tiếng Anh 11 Global Success