Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions.

Câu hỏi

Air pollution leads ______ global warming and many health problems.

A. into

B. to

C. on

D. up to

Đáp án
B. to

Câu hỏi thuộc Bài tập:

E10- I-learn- Unit 8 (2)