综合填空。阅读短文，根据短文内容及首字母提示，在空白处填入一个适当的单词。

    The mobile phone is a useful thing, but maybe I don't know (1) h           to use it. Sometimes it makes things

difficult for me.

    One day I wanted to see my friend nearby. I could (2) a             at his house in five minutes, but I looked at

my mobile phone and thought (3) i              would be better to ring him up. I (4) r            him for the first time,

but the line was busy. Five minutes later, there was an answer, but it was the wrong number. Then I tried

(5) a            and this time I got an answer from him.

    I asked him if he was at home in the afternoon. And he said-at (6) 1            I thought he said--he would be at

home all afternoon. So I went to his house, but then I found (7) n             in. I called him for the fourth time.

This time I got so angry that I (8) s            , "You are not at home? But you just told me over the telephone that

you would be at home all afternoon!"

    Here (9) w            his answer, "No, I said: 'I will NOT be at home all afternoon.'"

    I went back to my room, sat down in front of the mobile phone and looked at it. What (10) e             could I

do? Nothing!