3.Write modern achievements in communication 1840-. 1866-. 1876- 1895-.. 1936-..​

Существуют три основных вида смартфонов в наши дни: iPhone, Android и Windows Phone. Я думаю, что самой популярной моделью смартфонов в России является iPhone. Второе место принадлежит устройства на платформе Android — а после них Windows Phone устройства. Каждый вид смартфонов работает под управлением собственной операционной системы: iPhone работают под iOS, Android -устройства работают под ОС Android, и Windows Phone -устройства работают под Window Phone OS. Каждая операционная система имеет свои плюсы и минусы. Что касается меня, я предпочитаю Android OS. Но я любою iOS, и поэтому у меня также есть iPod Touch.

There are three primary kinds of smartphones nowadays: iPhone, Android-platform devices, and Windows Phone-devices. I think the most popular model of smartphones in Russia is iPhone. The second place belongs to Android-platform devices, and after them there are Window-Phone devices. Every kind of smartphones works under the control of its own operation system: iPhones run under iOS, Android-devices run under Android OS, and Windows Phone-devices run under Window Phone OS. Every operation system has its own pros and cons. As for me, I prefer Android OS. But I also like iOS, and I also have an iPod touch

1. After Jim and Ben had bought the tickets, they entered the theme park. (buy, enter)

2. After the boys had three rides, they felt hungry. (have, feel)

3. Mum had made and packed some sandwiches for them. So they just bought some drinks. (make, pack, buy)

4. The boys had took a ride on a roller coaster after they ate their sandwiches. (take, eat)

5. After coming off the roller coaster, Jim noticed that he had lost his cap. (notice, lose)

6. He asked a girl from the staff about his hat. The girl said that she picked on it up and passed the cap to the ticket desk. (ask, pick, pass)

7. After Jim had fetched his hat, they went to take a ride on the drop tower. (fetch, go)

8 When the boys had reached home, their parents asked if they had a good day. (reach, have)

Объяснение:

Past Simple употребляется в случаях:

Если надо рассказать о действии, которое неоднократно / часто (обычно) происходило в . (My mom always said me...)Если действие произошло единожды и не относится к настоящему никак. (I was born in...)для описания последовательных действий в . (Shе made a coffee, took her backpack, put on a jacket and went to school.)

Past Perfect употребляется в случаях:

Требуется показать действие, произошедшее перед другим действием в . (Действие завершилось до начала другого).Действие завершилось до определённого момента в . (I had done my homework before my mom returned.).