Mary was ______ to tears by their criticism.
【正确答案】 B
【答案解析】他们的批评让玛丽流泪满面。A.sunk“下沉”,没有be done to的用法。B.be reduced to sth./doing sth.“使陷入……”。C.be forced to do sth.“被逼做……”。D.declined“下降”,没有be done to的用法。