1 . I last saw Bob about a month ago, when he just ________ (leave) his job. He said he was going to France and ________ (promise) to send me a post card as soon as he found a place to stay. But I ________ (hear) nothing since then. (所给词的适当形式填空)

2 . Upon __________ (hear) the news, his mother burst into laughter. (所给词的适当形式填空)

3 . I’m upset ________ (hear) that the teenager hasn’t recovered from the operation. (所给词的适当形式填空)

4 . She couldn’t make herself ________ (hear) above the noise of the traffic. (所给词的适当形式填空)

5 . The girl answered the question in such a low voice that she couldn’t make herself________(hear) by others. (所给词的适当形式填空)

6 . The speaker raised his voice but still couldn’t make himself ______(hear). (所给词的适当形式填空)

7 . I’m looking forward to ______ (hear) more details from you soon. (所给词的适当形式填空)

8 . Look at his sad face! He must ________(hear) of the bad news. (用所给词的适当形式填空)

9 . I look forward to ________ (hear) from you in the near future. (所给词的适当形式填空)

10 . Graham was very difficult before he came into my class. I ______________ (hear) stories about his bad behavior. （所给词的适当形式填空）