Resposta :
Resposta:
2a) *interrogative*: can sofia dance very well?
**negative**: sofia can't dance very well.
b) *interrogative*: can Guilherme and tibor go out late at night?
**negative**: Guilherme and Tibor can't go out late at night
Resposta:
2a) Sofia can't dance very well / Can Sofia dance very well?
2b) Guilherme and Tibor can't go out late at night / Can Guilherme and Tibor go out late at night?