(New Season 8) The environment: passive voice
TRANSFORM THE SENTENCE INTO THE PASSIVE VOICE: "People can use buses more often."
Buses CAN BE USED more often.
TRANSFORM THE SENTENCE INTO THE PASSIVE VOICE: "We must recycle all materials."
All materials MUST BE RECYCLED.
TRANSFORM THE SENTENCE INTO THE PASSIVE VOICE: "The government should encourage the population to save water."
The population SHOULD BE ENCOURAGED to save water by the government.