Present Perfect, Past Simple, Past Continuous или Past Perfect. 1. They (told) me yesterday that you (had got) an excellent mark. 2. When did you (receive) a letter from your friend? 3. Our grandmother (was cooking) dinner from twelve till three yesterday. 4. Look! What beautiful flowers she (is buying)! 5. They ( travelled) along the coast of Africa last year. 6. We (have not seen) each other for ages. 7. They (have eaten) all the apples which I (brought). 8. When the children (had had) dinner, they (went) for a walk. 9. Last summer we ( lived) in the country and (went) to the river every day. 10. My sister ( spent) a lot of money yesterday. 11. She is so upset: she (has lost) the key to the front door. 12. By the 1st of September all the children (had returned) from the country. 13. Columbus ( discovered) America 500 years ago. 14. Columbus (did not know) that he (had discovered) America. 15. I have already ( read) five English books. 16. He (had discussed) the problem with a lot of people before he (took) a decision. 17. Mother (has baked) a delicious cake! Sit down at the table and let's eat it! 18. She (was reading) an English book the whole evening yesterday. 19. I have never ( been) to Greece. 20. Have you ever ( been) to the Niagara Falls? 21. At this time yesterday they (were sitting) on the sofa and (listening) to their grandmother who (was telling) them fairy-tales. 22. My friend has just ( rung) me up from London. 23. I (was standing) at the tram-stop when it ( began) raining. 24. We (have not skated) since last winter.
the robots in our modern world are quite amazing. they can do about almost anything that people can imagine. although not everything. but that is what scientists and inventors are aiming for, that robots can one day fulfill any need that a human may want. although there is also a down side to this, for if that were to happen, then we would become lazybums and only robots would do everything for us. in our modern world though this hasn't come yet fortunately. at the moment things that humans have been doing themselves for ages are being doen by robots. this brings great convenience, for it also improves productivity, for example in factories. with robots working in factories, we can be assured that that factory will have a lot more progress and improvement in speed and development, especially compared to a factory from before which didn't use robots.
the robots in our modern world are quite amazing. they can do about almost anything that people can imagine. although not everything. but that is what scientists and inventors are aiming for, that robots can one day fulfill any need that a human may want. although there is also a down side to this, for if that were to happen, then we would become lazybums and only robots would do everything for us. in our modern world though this hasn't come yet fortunately. at the moment things that humans have been doing themselves for ages are being doen by robots. this brings great convenience, for it also improves productivity, for example in factories. with robots working in factories, we can be assured that that factory will have a lot more progress and improvement in speed and development, especially compared to a factory from before which didn't use robots.