1. The sanitary engineer is concerned with hydrology. - Present Simple Passive
to concern
2. Different systems of water filters are used in present day. - Present Simple Passive
to use
3. Water finds its way to the rivers. - Present Simple Active
to find
4. Ocean water contains salt and other mineral materials. - Present Simple Active
to contain
5. The earliest written records of water purification date to 2 000 B. C. - Present Simple Active
to date
6. The modern recreation center has been erected in the center of Moscow. - Present Perfect Passive
to erect
2. I remember that you came last week, but ...
3. You want to say that goldfish are still not in the shop?
4. Unfortunately, no.
5. I want you to call me when the fish, which I was looking for, delivered to the store. Write down my number, please.
6. I see that you are in a bad mood. I can offer you a decoration for the aquarium. Or multi-colored sand.
7. Good. I like the purple sand. And he won a small chest on the top shelf ...
8. And I like it when you smile. Can I ask you to drink a cup of coffee with me at lunchtime?
9. It will be great, but first allow me to buy something. I expected to see a greater variety of trinkets.
10. Of course, now I'll show you all
11. I'll let you know what happened after their conversation. 12. She bought a few trinkets and drank a cup of coffee with the seller. 13. He called her the next day, because the store brought goldfish. 14. And two days later they go on a date.