depends / this water / on / on / Earth / life / all.
All life on Earth depends on (this???) water
All life on (this??) Earth depends on water
a / blanket / gases /of / by / surrounded / is / the / Earth.
The Earth is surrounded by a blanket of gases
layer / the / ozone / scientists / are / about / concerned.
Scientists are concerned about the ozone layer
lakes / to / protect / we / streams / rivers / can / oceans / help.
We can help to protect streams, rivers, lakes, and oceans
the Earth / anyone / can / green / help / to / keep.
Anyone can help to keep the Earth green
greenhouse / trees / fight / help / effect / and us / give / oxy-gen.
Trees give oxygen and help us fight the greenhouse effect
April / 22 / day / Earth / inhabitants / of / celebrate / Earth.
The inhabitants of Earth celebrate Earth Day on April the 22nd.
air / polluted / for / people / trees / other / plants / but / for / animals / is / not / only bad.
Polluted air is not only bad for people, but (also) for plants, trees, and other animals
harmful / for / acid / to / plants / is / rain / rivers / live / in / creatures / them.
Acid rain is harmful to rivers, plants, and creatures that live in them
Здесь что-то не так, видимо, неудачно переписали слова. Кое-где пришлось добавить артикли и тп
2. You'll have to talk to him in person./=(tete-a-tete) /(face to face)
3. We had to wait out the rain at the station.
4. I had to apologize, even though it was unpleasant for me.
5. The book must be rebound, otherwise some pages may be lost.
6. You have to get up very early, don't you?
7. He had to make a remark to you, didn't he?
8. He didn't have to take the entrance exams.
9. We didn't have to escort them /(=to see them off) to the hotel.
They themselves knew the way very well.
10. The work will have to be done today.
11. He said you'd have to go there alone.
12. The whole page had to be reprinted because of one misprint. /(typo).