根据对话情景,填入恰当的单词,每空一词.
A;Hi,Joy,What are you doing?
B:I am 1.___________ a picture.
A:How long have you 2._____________ drawing?
B:I have been drawing 3.___________ I was six years old.
A:You mean you began to draw seven yeras 4.__________________.
B:Yes,you're right.
A:Are you 5.___________ in drawing
B:Yes I like it very much.