545.At the end of the meeting,it was announced that an agreement ______.
A.has been reached
B.had been reached
C.has reached
D.had reached
546.I got caught in the rain and my suit ______.
A.has ruined
B.had ruined
C.has been ruined
D.had been ruined
545.答案是B;从句的动作发生在was announced之前，故用过去完成时。
546.答案是C;ruin表示的动作发生在got caught之后，且为被动，故选C。
