题目内容：

阅读下面的短文，用括号内所给词的适当形式填空，必要时可加助动词。请将答案填写在文后相应的横线上。

During the Second World War．John's family didn't have a washing machine．Therefore，1  （keep）clothes clean became a problem for them.

Before long，a family friend decided  2  （join）the army and his wife was going with  him．John's family told them that they could take care of their furniture while they were away. To the  3  （family）surprise，the friend suggested they should use his Bendix washing machine．“It would be better for it to  4 （use），rather than sitting 5 （quiet），”he said．

Young John helped with the washing，and he developed a deep love of the old，green Bendix．6 （Late），the war ended and the family's friend returned．When he came to take the machine away．John became very sad．His mother saw this and said to  7 （he）．“Son， you must remember that machine didn't belong to us in the 8  （one）place. It was a gift for us to be able to use it for such a long time．So，instead of  9 （be）sad about the loss．Let’s be grateful that we  10 （be）able to use it at that time.”

We have all experienced loss：loss of people and things．However，if we see the thing we 11 （lose）as a gift that we were given for a time，maybe the sad  12 （memory）will change into  13 （thank）ones．