1) It was ... who told you. Not my brother. d) me
2) You can use both expression, ... is correct. a) either
3) This sister of ... is always eavesdropping. b) yours
4) I didn't like the sitters, though they seemed nice. I liked ... of them. a) neither
5) I'd like to try one of ... shirts on. d) those (можно b) these)