Please help me check this task.

Say whether each of the verbs in these sentences is (a) monotransitive or (b) complex transitive. Then put each main clause into the passive.
1) We admitted that a mistake had been made.( admitted:a)
That a mistake had been made was admitted.
2) Everyone considered the mistake to be very serious.(considered:b)
The mistake was considered to be very serious.
3) We considered you to be one of our most loyal supporters. (considered:b)
You were considered to be one of our most loyal supporters.
4) We fully recognized that you have had great difficulties. (recognized:a)
That you have had great difficulties was fully recognized.
5) We find you innocent of all the charges. ( find:b)
You were found innocent of all the charges.
6) We know your companion to be a trouble maker. ( know:a)
Your companion is known o be a trouble maker.
7) We have proved your story completely accurate. ( prove:b)
Your story has been proved completely accurate.
8) However, we think you, at times, indiscreet. ( think:b)
However, you are thought, at times, indiscreet.
9) We expect you to show a little more tact. ( expect: a, show:a)
You are expected to show a little more tact.
10) We regret that you must make this criticism. (regret: a)
That you must make this criticism is regretted.
11) The Air Force has reported two planes missing. ( report: b)
Two planes missing have been reported by the Air Force.
12) The authorities meant you to complete this form, and return it to the Town Hall. ( meant:a, complete:a)
You were meant to complete this form, and return it to the Town Hall by the authorities.