Ⅰ. 单句语法填空
1. Many people were surprised by the government’s announcement (announce) that there will be a cut in taxes.
2. The later eruptions (erupt)were less violent and caused no significant damage.
3. What is occurring (occur) today is only a repeat of yesterday.
4. When she asks you to do something, you do it immediately (immediate).
5. It was one of the greatest sea disasters (disaster)in human history.
