Mark the letter A, B, C, or D to indicate the underlined part that needs correction in each of the following questions.

Câu hỏi

Because conservation efforts, a large part of the reef is now protected.

Đáp án
A. Because

Câu hỏi thuộc Bài tập:

UNIT 10: THE ECOSYSTEM - 45-MINUTE TEST - Tiếng Anh 11 Global Success