__________, but it also filters out harmful sun rays
A. Not only does the atmosphere give US air to breathe
B. Not only the atmosphere gives US air to breathe
C. The atmosphere gives US air to breathe
D. The atmosphere which gives US air to breathe
Đáp án là A. cấu trúc đảo ngữ: Not only + auxiliary + S + V, but + S + also + V....