问题
选择题
—I’m sure Andrew will win the first prize in the final.
—I think so. He ________ for it for months.
A.is preparing
B.was preparing
C.had been prepared
D.has been preparing
答案
答案:D
考查时态.我确信安德鲁最后能赢得一等奖.——我认为是这样。过去几个月中他一直在做准备。可知描述的是已完成的进行中的动作,故选D。