Choose the right answer.

1.
A: Eve and Kate really don’t get along! They never agree on anything.
B: It’s not that. I just don’t think they are ...

2.
A: What do you think of Apple's new laptop?
В: I love it! Apple is ... the competition when it comes to design.

3.
A: Why did you get coloured ink for the printer? We need black.
B: Oops! We must ... because I thought you said we have enough black, buy colour cartridges.

4.
A: I find it difficult to download music from the Internet.
B: Oh, come on! It isn’t ... !