【题目】— You ________ supposed to be here much earlier, Bill.
— Sorry, sir. I got caught in a traffic jam on the way.
A. are B. were
C. have been D. had been
在线课程【答案】B
【解析】句意：——你本该更早一点到这里的，Bill。——对不起，老板。我在路上遇到交通拥堵了。were supposed to do sth.表示“本应该做某事(而没有做)”。故选B。