阅读下面短文，根据短文大意及图示，在每个空格上填上一个意义相符、形式正确的单词。
The mobile phone is a useful thing, but maybe I don't know ____ to use it. Sometimes it makes things difficult for me.
One day I wanted to see my friend nearby. I could ____athis house in five minutes, but I thought it would be better to____him up. I rang him for the first time, ____ the line was busy.
Five minutes later, there was an answer, but it was the wrongnumber. Then I tried ____ and this time I got an answer from him. I ____ him if he was at home in the afternoon. And he said he would be at home all afternoon. So I went to his house, but then I found ____ in. I called him for the fourth time. This time I got ____angry that I said, “You are not at home? But you just told me over the telephone that you would be at home all afternoon!”
Here was his ____, “No, I said: I will NOT be at home all afternoon.”
I went back to my room. What____could I do? Nothing!
