Complete the tag-questions.

Nobody saw us, _______________ ?
2. Sean never goes to bed until really late, _______________ ?
3. Let's go to Mexico this summer, ______________ ?
4. The sun hardly shone all summer, _______________ ?
5. Somebody called me , _______________ ?
6. It's never too late , _______________ ?
7. There's no homework, _______________ ?
8. Everybody enjoyed the party, _______________ ?