词汇与完成句子。

请根据汉语或首字母提示，或所给词的适当形式填空。

1. Her face b       (表露出) her nervousness.  

2. The match was cancelled because most of the members        (反对) to having a match without a

standard court.

3. I suppose it never          (想到) to me to phone the police.

4. He isn't Chinese, but he is        (流利) in Chinese.

5. It was          (care) of you to leave the door unlocked.

砂子堆在地面上占地正好是圆形，量出它一周的长度是15.7米，那么直径是多少米？