Dr Lam _________ (invent) a machine in 1920.
invented
Jason _________ (become) a painter since he was 15 years old.
has become
Alice _________ (start) to write books in 1996.
started
Mandy _________ (make) a cake for Sally.
has made/ made
Anson _________ (be) a singer since 2001.
has been
She _________ (play) the piano for 10 years.
has played