----- We could have asked Mr. Zhang for help. He is caring and considerate.
----- I that. A long time .
A. forgot; had been wasted
B. forget; wasted
C. have forgotten; wastes
D. forgot; was wasted
网友回答
A. forgot; had been wasted
B. forget; wasted
C. have forgotten; wastes
(答案→)D. forgot; was wasted
解析：考查时态语态：句意是;--我们本来是可以向张先生求助的，他很有爱心也考虑周到。--我忘了，那么长时间被浪费了。说明忘了是过去发生的，时间也被浪费了。选D。