Fill in the idioms.

1. A: What do you think, John - is our plan risky?
B: Not at all! It's ... . \(very safe\)
2. A: Is that Anna and Fiona together? I didn't know they were friends.
B: Yes, they are really close. They ... . \(get on very well\)
3. A: You really liked staying at The Regent Hotel, didn’t you?
B: Yes, I did. It was like ... . \(very comfortable\)
4. A: I am glad we got the loan from the bank.
B: Me too. It means we’re ... . \(not expecting further problems\)