We came in the room. Our boss was sitting in the f...

Câu hỏi: We came in the room. Our boss was sitting in the front desk.

A. We came in the room, our boss was sitting in the front desk.

B. When we came in the room, our boss had been sitting in the front desk.

C. When we came in the room, in the front desk was sitting our boss.

D. Hardly had we come in the room when our boss sat in the front desk.