Ⅰ. 单句语法填空
1. I am on duty today; it’s my turn to clean the classroom.
2. To a certain extent, we are all responsible for this tragic situation.
3. The drum is one of the oldest musical (music) instruments.
4. They hugged (hug) each other like a couple of lost children.
5. With some hesitation (hesitate) and an uncertain smile, she held out her hand.
6. Eventually (eventual) she was fired from her job at a publishing house.
7. Both boys had good manners (manner), politely shaking hands.
8. All airports in the country are working normally (normal) today.
9. She had asked the government for permission (permit) to move the books to a safe place, but they refused.
10. The party needs to broaden (broad) its appeal to voters.