Answer :
I'm not sure about all of them, but I think that most of them are right.
a) ewe/yew
b) beach/beech
c) led/lead
d) key/quay
e) plain/plane
f) pain/pane
a) ewe/yew
b) beach/beech
c) led/lead
d) key/quay
e) plain/plane
f) pain/pane