We have read ( Present Perfect Active) the text about power transmission.
2.It is ( Present Simple Active) very difficult to translate.
3.The students are learning ( Present Progressive Active ) the new words.
4.All transformers worked ( Past Simple Active) well.
5.An operator will examine ( Future Simple Active) this electric device.
6.Branch lines distribute ( Present Simple Active) the power to various cities.
7.Workers built ( Past Simple Active) the new power station some time ago.
8.It generates ( Present Simple Active) the electrical energy.