fill in:has/have been in /to,has/have gone to.
1.A: Have you ever been to France?
B: no,i haven't but i'd like to go one day.
2.A: I'm afraid Sua and Pam can't come with us.they want to visit their grandmother.
B: she ......................hospital for a long time ,hasn't she?
3.A: How long ......................Mexico?
B: for nearly three years.
4.A: Do you know where mum is?
B: I think she ........................the post office to get some stamps

Giúp mình với .mình cảm ơn trước