нужна с этими предложениями

ex.1
a) She was waiting for the manager. She had been waiting for him since she came to the office. 
b) It happened some years ago.
c) Before he went there last Monday he had discussed some business matters with his director and got necessary instruction from him.
d) It was introduced into the market at the beginning of the year and since then it has been a great success.
e) Has your company done good business?
– Yes, they discussed it two days ago.
ex.2
1. I’d like him to change the contract terms.
2. I expected them to introduce changes into the computers.
3. I saw Mr.Dunn buying some envelopes at the post office ten minutes ago.
4. When do you want the new machines to be shown in operation?
5. What contract terms do the buyers usually want the selling companies to offer?

1. All preparations being made, we went on an excursion. (the Nominative Absolute Participial Construction = независимый причастный оборот) - Когда все приготовления были сделаны, мы отправились на экскурсию.

2. I expect you to be on time. (Complex Object = объектный инфинитивный оборот, сложное дополнение) - Я жду, что ты придешь вовремя.

3. He is said to learn foreign languages quickly. (Complex Subject = субъектный инфинитивный оборот, сложное подлежащее) - Говорят, что он быстро учит иностранные языки.