I´m writing an English-Test on Friday and have some problems with the tenses, specially with the Simple Past and the Present Perfect. In our workbooks are some sentences which I made at home but I´m not sure if there are right. Maybe you can help me
Becky arrived in the US three weeks ago.
Becky has arrived in the US three weeks ago.
Becky phoned her mum yesterday.
Becky has phoned her mum yesterday.
Becky has visited New York last week.
Becky visited New York last week.
She has already taken a lot of photos.
She already took a lot of photos.
Becky has been to lots of fantastic cities so far.
Becky was in lots of fantastic cities so far.
She has just sent her mum a lot of postcards.
She just sent her mum a lot of postcards.
Two days ago Becky has had the first problem of her holiday.
Two days ago Becky had the first problem of her holiday.
She hasn´t told her mother about the accident yet.
She didn´t tell her mother about the accident yet.
After the accident happened many people stopped.
After the accident happened many people have stopped.
The green sentences are the right sentences in my opinion.