Help me please

1. He (to agree) to help only after I (to ask) him several

times..

2. It (to be) evening when I (to leave) the building and it (to get)

dark.

3. He (to call) to ask for advice how to choose an antivirus software. He (to

buy) a new one.

4. Ran (to finish) with the project by 8 pm o’clock this afternoon.

5. She (not, to prepare) well enough and (to fail) at the interview..