I could have said I was unfamiliar with a straight in approach and could I do a circuit instead?
Yes, you could. That's one I actually got right - on my QXC I was approaching the second airfield, had the circuit all planned out, then got told "we're not busy, you can join right base if you like". Decided I didn't want to cope with trying to work out what right base was or how to get there, replied "'s OK thanks, I stick with the overhead join".