根据句意及所给首字母提示完成句中所缺的单词

分类: 作业答案 • 2021-12-28 18:09:20

问题描述：

根据句意及所给首字母提示完成句中所缺的单词
1.With tears in her eyes,she was u____ to say a word.
2.Sound travels at the s____ of 340 metres a second.

答

With tears in her eyes,she was unableto say a word.
2.Sound travels at the speed of340 metres a second