Презентация "Past Simple vs Present Perfect"

Past Simple необходимо использовать, если действие было в прошлом, и этот отрезок времени истек, поэтому Past Simple обычно используется в повествовании, в разговоре о прошедших событиях.
Present Perfect используется, когда действие, происшедшее в прошлом, связано с настоящим, то есть имеет какие-то последствия, результаты. Или же просто очень близко к настоящему моменту.

При употреблении слов, обозначающих конкретный период времени, когда произошло событие (ago, yesterday, last week, year, etc.),  всегда используется Past Simple.
Если же в предложении встречаются такие обстоятельства времени как never, ever, for, just, already, yet, то используем Present Perfect.
Часто бывает так, что в предложении нет ни первых, ни вторых – это указание на использование Present Perfect!

1)Last summer we visited / have visited all the interesting places in the region.
2)There are foot prints everywhere! Someone came / has come here!
3)It is an interesting book, I have read / read it.
4)They are not in the city, they moved / have moved to the country for the summer.
5)Mr Brown has changed / changed his job last year.
6)When did you go / have you gone to France?
7)I never watched / have never watched this film.
8)They watched / have watched an interesting movie a week ago.
9)Last winter she has sold / sold her flat and went / have gone to live abroad.
10)She broke / has broken her leg in the childhood. ☺

1)Mary (finish) school 10 years ago.
2)He (write) a letter and now he is going to send it.
3)Last weekend they (go) to the sea.
4)When you (come)?
5)I (not decide) yet where to go this weekend.
6)John (leave) his bag in the library last Monday.
7)Harry and Jane (buy) new TV set and now are enjoying a film.
8)His grandfather (die) when he was a child.
9)Clara (be) never abroad.
10)John (not arrive) yet. ☺