please,correct these Sentences Transformation

Hi. Except for #1, you didn't say what the exercise required, so I will guess!

1 he managed to see the concert, even though he had lost his ticket
DESPITE
1* despite he lost him ticket , he managed to see the concert

He managed to see the concert despite having lost the ticket.

or with the 2nd clause first - either way is fine

despite + v+ing

2the police had made 3 arrests by the time the delective arrived
2 WHEN THE DETECTIVE ARRIVED, 3 arrests were made by the police

Not really sure. The original sentence is better than any change I can think of!

By the time the detectives arrived, 3 arrests had (already) been made.

 - again, either clause first is fine. "had been made' is passive voice, which some style guides say should be avoided. Oh! I just used passive voice again! ahaha!


3 Mary won't come with us
3 MARY REFUSES to come/coming with us (?)  to come

4 what is there to do ? Sara said to Jim
4* SARA ASKED Jim what there was to do,. good!