1)They have been playing football for two hours.
2)The soup has been boiling since 12 a.m.
3)Ann has already chosen the dessert .
4)They have not done the shopping today.
5)Has Tom ever visited Disneyland?
6)He has been talking about their new development strategy for the last three hours.
7)I have just seen a horror film.
8)Have you been cleaning the yard for the last 2 hours?
9)She has already found her book.
10)I have been reading this new novel for two weeks
11)The cat has already eaten up the fish.