问题
选择题
The flower is dead. I ___ it more water.
A．will give
B．ought to give
C．could have given
D．ought to have given
答案
答案：D
题目分析：句意：这个花死了，我本应该给它浇更多的水的。从The flower is dead.可知是浇水是过去的事情，排除AB，could have done本来可能做却没做，ought to have done本应该做却没有做。选D。