急急急！急急急急！请教高手一些英语词组

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1. Go to sleep;
2. Immediately; immediately
3. In the forest;
4. Half a kilogram;
5. Download some information;
6. Leave school home;
7. Thinking (think);
8. Write down
9. In the desert
10. Keep health
11. Save the file
12. The Internet
13. In the playground
14. Received an E-mail
15. The population of Shanghai
16. With...... adornment
17. Online
18. In the western countries
19 in someone go to...... road