Part 1
1 friendliness
2 were
3 after
4 written
5 correspond
6 which
Part2
1 - D
2 - C
3 - A
4 - G
5 - E
6 - F
Part 3
1 should do
2 visiting
3 cut
4 made
5 has learnt
6 modernize
7commercial
8 untreated
Part 4
1 will => would
2 carefully => careful
Part 5
1 I would pay a visit to
2 planted trees along the
3 going to be sent
4 which I borrowed from
Part 6
1 subtances
2 Industrial
3 frequently
4 that
Part 1
1 friendliness
2 were
3 after
4 written
5 correspond
6 which
Part 2
1D 2C 3A 4G 5E 6F
Part3
1 have to do
2 visiting
3 cut
4 was making
5 has learnt
6 modernize
7 commercially
8 mistreated
Part 4
1 will -> would
2 carefully -> careful
Part 5
1 to pay a visit
2 planted trees along the
3 going to be sent
4 that I borrowed from
Part 6
1 substances
2 industrial
3 naturally
4 that
Part 7
1F 2F 3T 4T