2. We're friendly (always) - correct
3. I watch the news on TV (sometimes) - correct
4. Do you go out at night? (usually) - incorrect, it should be "Do you usually go out at night?"
5. The trip from Hai Duong to Ha Noi by train takes an hour (often) - incorrect, it should be "The trip from Hai Duong to Ha Noi by train usually takes an hour."
6. My sister doesn't go out in the evening (usually) - correct
7. Do your parents go jogging? (everyday) - incorrect, it should be "Do your parents go jogging every day?"
8. It's wet in spring in Vietnam (usually) - correct
9. He can't stay focus (always) - incorrect, it should be "He can't stay focused always" or "He can't always stay focused."
10. They are at university at the weekend (never) - incorrect, it should be "They are never at university on the weekend."