根据提示写单词。

1. You can look up the word in the d________ if you don't know it.

2. Don't ________ (fail to remember) to call me when you get there.

3. Mobile phones are ________ (流行的，普遍的) in the modern world.

4. Don't w________ water. Can't you see the sign "Save Water"?

5. They won the basketball match yesterday. The s______ was 5:3.