英语翻译（括号里的单词或短语必须用上）.1,这些观众一定是错过了看他们的音乐演出,否则他们会给予高度评价的.（must

1.these audience must have missed their music performance,or they should have spoken highly of it.
2.although she was in a foreign country,somehow she managed to sense her mother's deep concern for her.
3.the operater spent 2 hours or so on the way from home to his work.
4.he appreciated her compassion and understanding,because at that time it meant a lot to him.