II. Определите функцию слов, заканчивающихся на —ed:
а) личная форма глагола в Past Simple;
б) Participle II в функции простого сказуемою, выраженного глаголом в страдательном залоге;
в) Participle II в функции определения;
г) Participle II в функции обстоятельства.

1. When required, the data will be applied in our practical work.
2. Every transponder consists of the receiver tuned to a channel or range of frequencies lying in the uplink band of frequencies, a frequency shifter and a power amplifier.
3. Later development of telephone changed its construction, it became more complex.
4. Electromagnetic waves are attenuated in passing through the ionosphere and the lower atmosphere.

значит в первом 2 формы или как?

1. When required г) , the data will be applied б) in our practical work. 2. Every transponder consists of the receiver tuned в) to a channel or range of frequencies lying in the uplink band of frequencies, a frequency shifter and a power amplifier. 3. Later development of telephone changed а) its construction, it became more complex. 4. Electromagnetic waves are attenuated б) in passing through the ionosphere and the lower atmosphere.