My mother cooked a tasty dinner yesterday.
* General:
Did my mother cook a tasty dinner yesterday?
* Special:
When did my mother cook a tasty dinner?
What did my mother cook yesterday?
What kind of dinner did she cook?
* Special, to the Subject:
Who cooked a tasty dinner yesterday?
Whose mother cooked a tasty dinner yesterday?
* Alternative:
Did my mother cook a tasty dinner yesterday or the day before yesterday?
Did my mother or my cousin cook a tasty dinner?
* Tag // Disjunctive:
My mother cooked a tasty dinner yesterday, didn't she?
1) He must like chocolate. Everyone likes chocolate!
2) She might live in Spain. I'm not sure.
3) I've lost my bag. It could be somewhere at school, or maybe at Tom's house.
4) He can't have a sister who's 30. His mum and dad are only 40.
5) They can't be from France. They don't speak any French.
6) The people near the erupting volcano must feel very scared.
7) That car could cost a lot of money. It's a BMW,and BMWs are always expensive.
8) She might play the piano. I don't know.