He worked the whole night last night. His ey...

Câu hỏi: He worked the whole night last night. His eyes are red now.

A. If he didn't work the whole night, his eyes wouldn't be red now. 

B. Unless he worked the whole night last night, his eyes were red now. 

C. If he hadn't worked the whole night last night, his eyes wouldn't be red now. 

D. He worked the whole night last night otherwise his eyes were red now.