问题
选择题
------Hey, Emily, I’ve got a used copy of our chemistry textbook for half price.
------ I’m afraid you ____ your money. Yours is the first edition, but we’re supposed to be using the third edition.
A．had wasted
B．were wasting
C．wasted
D．will waste
答案
答案：C
题目分析：考查时态。本题根据句意用一般过去时，表示过去的事实。句意：——嗨，Emily，我以半价买了一本旧的化学书。——恐怕你浪费钱了，你的是第一版，但我们应当用第三版。故C正确。