:
1)
первая колонка visit-visited, fix-fixed, stay-stayed
вторая колонка: dance-danced, live-lived, practise-practised
третья колонка: try-tried, carry-carried, study-studied
четвертя колонка: plan-planned, stop-stopped, travel-travelled
2)
a) washed
b) helped
c) cleaned
d) tidied
e) danced
f) stopped
g) hurried
h) played
i) chatted
j) listened
3)
a) enjoyed
b) phoned
c) planned
d) stayed
e) fried
f) arrived
g) organised
h) closed
i) invited
j) rained
k) shopped
l) visited