Ⅰ. 单句语法填空
1. We should plant trees where pollution is serious.
2. Suddenly, I heard a strange sound which made me frightened(frighten).
3. Leaving less important things till tomorrow is (be)also acceptable.
4. It’s one of the most costliest (costly) natural disaster in the US history, causing 108 billion in damage.
5. Now it’s possible to identify (identity) a number of key issues.
6. Hearing(hear)the doorbell, she stopped washing dishes.
7. When I came in, I found the boy lying (lie) on the ground and crying.
8. The girl staring (stare) at him, he didn’t know what to say.
9. The beauty of the stars inspired us and gave us confidence(confident)to move on.
