Question

11. ―Are these seats available?

―Sorry, sir. The seats .

A, have reserved    B.  are reserved

C.  reserved   D. are reserving

Answer 1

11.   B考査动词的时态和语态。句意："这些座位可以坐吗？" "对不起，先生，这些座位已经有人预订了。"reserve和the seats之间是被动关系，而A、C、D项是主动关系，故选B。