Помогите пожалуйста по английскому языку!
Put the verbs in brackets into the present pefect.
1. A: Sarah...................(never,be) snorkelling.
B: No, she hasn't but she...................................(be) bungee jumping once.
2. A: How was your holiday?..........................(you,do) anything special so far?
B: We...........................(swim) with dolphins and we ........................(climb) up a volcano so far.
3.A: How's Yori?
B: I don't know. I .......................................(not, see) lately.
4. A: ............................................(thay/reach) London?
В: Yes, thay ............................(just/ arrive).
5. A: ....................(he/be) on a plane before?
B: No, this is the first time he........................(travel) by plane .
6. A: ...................................(you/hear) From Jenny?
B: Yes, she's in Russia. She ..................... (be) there a week now.

1A has never been
B has been
2AHave you done
BHave swum;have climbed
3B havent seen
4A have they reached
B have just arrived
5A has he been
5B has travelled 
6A have you heard
B has been