раскройте скобки , заменяя инфинитив нужной формой глагола -сказуемого 1"When you (to have) breakfast yesterday ?" 2"I

1\"When you (to have) breakfast yesterday?\" — \"When did you have breakfast yesterday?\"  

2\"I (to have) breakfast at nine in the morning.\" — \"I had breakfast at nine in the morning.\" — \" I am having breakfast at nine in the morning.\"

Did I have breakfast at nine in the morning?

What did I have at nine?

Who had breakfast at nine in the morning?