Помогите пожалуйста. Переведите на русский язык предложения, обращая внимание на

Помогите пожалуйста. Переведите на русский язык предложения, обращая внимание наформы инфинитива. 1. He was happy to have passed his exams. 2. There is nothing to laugh at. 3. Here are the papers to be signed. Переведите на русский язык предложения, обращая внимание на формы причастия. 1. The channel linking two rivers is being built now. 2. Having waited for him for half an hour they went home 3. The man showing us the weather map is our professor.