Find out True/False sentences. 1. Water isn't important for life.
2. Lake Baykal/the Baikal is in danger now.
3. Water isn't clean in seas, rivers and lakes.
4. We should keep water clean and air fresh.
5. People should save nature from pollution
6. People don't think about how to save the planet Earth.​

The hurricane has destroyed the town. The group has just arrived at Honolulu airport. Jeremy has joined the rescue team to help people after the earthquake.  The rangers from the group have helped the injured. Forest fires have not occurred in the area since last year. Their house has collapsed because of the flood.There has never been such a terrible natural disaster there for 2 years already. Volunteers from all parts of the country have come here. There has not been running water since the flood. His family has survived in the tsunami.​

Образование Present Perfect:

have / has + V3

have - I, you, we, they

has - he, she, it

1) The hurricane has destroyed the town.

2) The group  has just arrived at Honolulu airport.

3) Jeremy  has joined the rescue team to help people after the earthquake.

4) The rangers from the group  have helped the injured.

5) Forest fires  have not occurred in the area since last year.

6) Their house  has collapsed because of the flood.

7) There  has never been such a terrible natural disaster there for 2 years  already.

8) Volunteers from all parts of the country  have come here.

9) There  has not been running water since the flood.

10) His family  has survived in the tsunami.​