Viết lại câu sao cho nghĩa không đổi: They started to swim five years ago

1.They started to swim five years ago.
-They have.................................
2.My form teacher began teaching math in 2001.
-My form teacher..........
3.I find arranging flowers wonderful .
-My hoppy......................
4..I started playing soccer 5 years ago.
-I have...........
5.I am interested in learning English. 
--I find..........