Put the verbs in brackets into the correct tense form and

Put the verbs in brackets into the correct tense form and voice.
Mark to be) 13 years old. He (to live) in
Manchester and (to go) to a grammar school.
Mark always (to enjoy) using computers. He
(to start) using them three years ago. He
(to use) it to write his English compositions. This year, Mark
(to do) very well in his school tests and, as a reward, his
parents (to buy) him a modem. A modem
(to allow) his computer to talk over the telephone to other computers. Mark (to use) his modem for a few weeks now. He
(to send) messages to his friends all over the world. He
even (to play) computer games with his friends in
Australia.