根据中文提示，用词组的适当形式填空，每空一词。
1. ________ ________(事实上), he is afraid of making a speech in public.
2. As we know, good results ________ ________ (取决于) hard work.
3. Many teachers go on working ________ ________ (即使) they are sick.
4. His dream ________ ________ (实现) at last with his great effort.
5. We are ________ ________ (为……自豪) China for its long history and colorful culture.
