Underline the correct item. 1 do you write your assignments /chores on a computer? 2 did you take/do notes during the lesson? 3 how often do you go/become online at home? 4 which of your teachers motivates/explains you the most? 5 famous people often act as student/role models for teenagers. 6 to sum up/all computers are a big part of our lives. 7 what's true/more, children spend a lot of time playing computer games 8 living in a big city is very exciting. however/moreover, accommodation is very expensive. 9 laptops are smaller than personal computers. moreover/to sum up, they are lighter 10 do you think that mini airplanes will behave/ replace cars in the future?

1. assignments
2. take
3. go
4. motivates
5. role models
6. To sum up
7. more
8. However
9. Moreover
10. replace 

Past Simple of Present Perfect:

1. we (came) home by bus yesterday

2. he (has just broken) the window

3. mike (bought) two shirts yesterday

4. they (arrived) 2 days ago

5. I have (already cleaned) the window

6. Did you (visit) your parents yesterday ?

7. Did you (buy) this phone last week ?

8. Have you (ever seen) this film ?

9. Did I (break) the window yeasterday ?

10. we (have just met) at the station

11. I (lost) my keys last night

12. Carol (has already started) his new job

13. Liz (has not arrived) yet

14. I (have never travelled) by air

15. He (did not finish) his report yesterday

1. We came home by bus yesterday.

2 . He just broken the window.

3. Mike bought two shirts yesterday.

4. They arrived 2 days ago .

5. I already cleaned the window.

6. Did you visit your parents yesterday?

7. Did you buy this phone last week?

8. Have you ever seen this film?

9. I broke the window yesterday ?

10. We just met at the station.

11. I lost my keys last night

12 . Carol already started his job.

13. Liz hasn't arrived yet.

14. I never traveled by air.

15. He doesn't finish his report yesterday.

Объяснение:

Past simple:

+ He ate (V2) - вторая форма

- He /She /It doesnt eat

I/ you / they / we don't eat

? Did i/you/they/we eat

Does he/she/it eat?

Можно узнать по предлогам времени : yesterday, 2 days/ week's/ months / years ago, last night/ week / day/ month/year.

Present perfect :

+ He eaten (V3) - третья форма

- He/ She/ It hasn't eaten

I/ you/ they / we haven't eaten

? Has he/she /it eaten ?

Have i/ you/they/we eaten?

Можно узнать по предлогам :

since , already, just, never , ever ...