A. Rewrite the following sentence so that it does not have an awkward passive voice: The witness admitted that at several times violence has been threatened by him.

b. Rewrite the passive-voice sentences in the following paragraph into the active voice.

The retirement ceremony for Miss Stanton has been scheduled for next Friday by Mr. Andrews. It has been decided by him that we should present only one farewell gift, out of a fund to which employees can contribute if they want to. Specific details will be provided by the administrative assistant as soon as they are decided.