С! измените залог в следующих предложениях 1. the speaker stressed the importance of the congress. 2. this actor will play the part of hamlet. 3. the students have learnt a lot of new english words. 4. the director himself answered the phone. 5. somebody recommended me to see that doctor. 6. they had eaten all the dinner before they finished the conversation.

1. 
2. The part of Hamlet will be played by this actor.
3. A lot of new English words have been learnt by the students.
4. He was answered the phone by the director.
5. That doctor was recommended me to see by somebody.
6. All the dinner had been eaten before they finished the conversation.