请选择ABCD*?'I*V2E2i5w3X0S;U)k._6x-@ Hardly _________ come into the room _________ the meeting began.9K(L5g5R'f8P*c:D,H
A.had they;when9K(L5g5R'f8P*c:D,H
B.they had;when9K(L5g5R'f8P*c:D,H
C.did they;than9K(L5g5R'f8P*c:D,H
D.they did;then9K(L5g5R'f8P*c:D,H