题目内容：

根据句意及首字母或汉语提示，写出各句中所缺单词的正确形式。

1.F________ letting go of such a good chance like that, young man!

2.At first he didn’t realize that he had been r________ by his old friend, who he hadn’t seen for 20 years.

3.The sign says “Children without the company of an adult are not to be a ________.”

4.Large q________ of information and timely help have been offered since the organization was built.

5.With five minutes to go before the plane was s________ take off, Jack was only halfway to the airport.

6.Tom’s ________ (坚定的) look showed that he just never listened to me.

7.The Blacks were so friendly that I ________ (感激) their help when we moved.

8.From the car mirror I saw a police car drawing near and ________ (示意) to me to stop.

9.His purpose was not so much to attack his ________ (竞争者) but defend his own position.

10.Neighbors think he’s an ________ (有教养的), well-read man. So many people like him.