根据每个句子中所给的汉语意思，写出单词的正确形式。每空一词。

1. I did rather _______ (差) in the race.

2. What are you going to do in your _______ (两个月的) holiday?

3. The farmers are both busy _______ (种) vegetables now.

4. He must be ______ (阻止) from crossing the street when the lights are red.

5. Why do you _______ (不喜欢) travelling by air?

6. Lily felt sad because her bird was _______ (死了).

7. By the end of the _______ (二十) century, the world population had passed six billion,.

8. At the _______ (医务室), Kate was looked over carefully by Mr.Brown.

9. Please give us a short talk in English. Nothing _______ (难).

10. He put his other shoe under his bed very _______ (轻轻地).