问题补充:
25. ---- Why didn’t you pick up the MP4?
---- I it, but I didn’t carry that much money.
A. could buy
B. should buy
C. must have bought
D. could have bough
答案:
A. could buy
B. should buy
C. must have bought
(答案→)D. could have bough
解析:可联系答.案.网客服索取。