Use the verb in the correct form

1 What you (to do) here? -- l (to wait) for a friend
2 My brother (to smoke) a great deal
3 last year l often (to go) to the theatre
4 Don't come at two o'clock tomorrow. He (to be) busy
5 l am sure that they (to complete) their work by May​

1. Are you doing; am waiting
2. smokes
3. went
4. will be
5. will complete