Efforts are done in the hope of preserving all species and maintaining the ecological balance.
Mark the letter A, B, C, or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions.
Câu 475690: Efforts are done in the hope of preserving all species and maintaining the ecological balance.
A. done
B. of
C. species
D. ecological
Quảng cáo
-
Đáp án : A(0) bình luận (0) lời giảiLời giải sai Bình thường Khá hay Rất Hay
Hỗ trợ - Hướng dẫn
-
024.7300.7989
-
1800.6947
(Thời gian hỗ trợ từ 7h đến 22h)
Email: lienhe@tuyensinh247.com