Using the passive form

Kelas: SMA
Pelajaran: English
Kategori: passive
Pembahasan:

People may be (1) killed if a building (2) is knocked down by the tsunami.
They can also (3) be electrocuted ........they can be (4) killed by wires or explosion.
Wave heights of tens of metres (5) can be generated by large events.
Although the impact of tsunamis (6) is limited to coastal areas.