【高中·完形填空·The Gift of Time】
阅读下面短文，从各题所给的四个选项中选出可以填入空白处的最佳选项。

When people ask what they can give to someone they love, they usually think of objects. Yet few gifts are as rare as time.
We say we have no time, but what we mean is that we have no time we have chosen freely. Hours spent in meetings are not ours; hours given to a friend are.
My grandfather never gave me anything expensive. What he gave was Saturday mornings — two hours of teaching me to fish, to mend a chair, to recognise a bird by its song. Those mornings cost him nothing and left me everything.
Money can be earned again. Time cannot. That is why the most generous thing one person can say to another is not "Take this" but "I will stay." It is also why being late for someone is a small form of ______.

第 5 空：