完成单词。 1. s ______ long complex musical c

问题：

完成单词。

1. s ______ long complex musical composition, usu. In three or four parts (movements) for a large orchestra

2. a ______ things produced by sb. trying to do or make sth.

3. a ______ arrangement to meet or visit sb. at a particular time

4. c ______ very important, decisive

5. a ______ feeling anxiety, worried, uneasy