单项填空
请认真阅读下面各题，从题中所给的A、B、C、D四个选项中，选出最佳选项, 并在答题卡上将该项涂黑。
21. — We had ______ really damp October this year.
— I can’t remember ______ autumn when it rained so much.
A. a; 不填 B. 不填; the C. the; an D. a; an
22. — The party will start at 7:00 sharp. Come earlier!
— _______. Thanks for your mention.
A. Good idea B. I will C. I think so D. You’re right
23. My neighbor is very kind. I’ll never forget the ______ she’s done for me.
A. actions B. favors C. deeds D. help
