从A、B、C、D四个选项中，选出可以填入空白处的最佳选项。
21. ―The weather is changeable here. Please take more clothes in case.
―______.
A. Really B. That’s all right C. Actually D. Don’t worry
22. Students in our school are only judged ______ what they have achieved in study.
A. in spite of B. in charge of C. in favor of D. in terms of
23. We’ve made our plans, which are supposed to be put into ______ right away.
A. fact B. reality C. force D. deed
24. California is home to 4, 426 species of plants, and nearly half of ______ are found nowhere else.
