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

Farmers use ........... to control harmful insects and protect their crops.

A. fertilizers

B. dynamite

C. dung

D. pesticides

Đáp án
D. pesticides

Câu hỏi thuộc Bài tập:

TN-PART1-20KEY