Today, almost all teenagers have mobile phones. I think that this has both positive and negative sides. The advantages of this gadget are that they make our life easier. That is, we can always find the information that we need in just a few seconds, we can also contact our friends and loved ones by calling or writing to them through instant messengers. We can keep abreast of all the news from the outside world and keep up with the industry. But mobile phones can harm us in places. Sometimes we ourselves do not understand how we are attached to the phone, thus wasting a lot of time. Also, if we do not move away from the phone for hours, they can harm our eyes, so it is worth knowing the extent to which our gadgets are used. So, in the end, I believe that these gadgets can be very useful for us and for our development, but you should not neglect this and thereby harm yourself. You need to use mobile phones for the most part for need and sometimes for fun
Объяснение:
это наверно правильно я сама писала
1. The ship has just entered the port
2. They have already put to sea
3. I have never sailed on board bulkers
4. He has check the lifeboats today
5. They have came back home from their shipboard today
6. I have never been to London
7. He has visited St. Petersburg lately
8. He has already repaired the transmitter
9. She has already come home
10. He is out. He has just gone away
11. I have known our Captian for 10 years
12. We have lived here since 1996
13. The barge has left the port today
14. The new vessel has already arrived at the port
15. They have just lounched a new vessel
16. The cars has already rolled on the ferry
17. I can find my keys nowhere. I think I have lost them