Reported speech:

Can somebody answer this?
there'r some sentences below....i've to rewrite them in reported speech with the words given in the bracket..in front of
each sentence.......i've rewritten the sentences below each sentence......Please correct me ....i'm really not sure about it...
and i'd no idea...but i still have tried......let's see!
=> She asked Joe, “Why don’t you join the internship programme?” (She wanted to know…)
->She wanted to know why joe didn't join the internship programme?

=> Joe said, “I think the manager won’t accept my proposal.” (Joe didn’t…)
->Joe didn't thought that the manager would accept his proposal.

=> Mrs. Jones said to the children, “Don’t leave your toys and clothes on the floor.” (Mrs. Jones warned…)
->Mrs. Jones warned the children to didn't leave their toys and clothes on the floor.

=> He said to the shop-assistant, “The computer I bought yesterday is not working.” (He complained...)
->He complained to the shop-assistant that the computer he had bought yesterday is not working.

=> The manager said, “I’d like all financial reports sent to me directly.” (The manager insisted...)
->The manager insisted that he'd like all financial reports sent to him directly.

=> She said, “If I pass the driving test, I will buy a car.” (She planned…)
->She planned that if she passed the driving test, she would buy a car.

=> Jane said, “I must have made quite a lot of grammatical mistakes in my essay.” (Jane admitted...)
->Jane admitted that he must had made quite a lot of grammatical mistakes in his essay.

=> Mr. Jones concluded, “More security guards must be employed.” (Mr. Jones came to the…)
->Mr. Jones came to the conclusion that more security guards must be employed.

=> He said to us, “We will deliver the goods to you next Wednesday.” (He promised ...)
->He promised to us that they would deliver the goods to us next wednesday.

=> Jane asked, “Are you psychologically prepared for the change now?” (Jane asked me…)
->Jane asked me that was i psychologically prepared for the change now?