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Тут present perfect и present perfect continuous

                                                           Диалог 1
1 pupil: What holiday do children in your country like best of all?
2 pupil: New Year, I think.  

1 pupil: Do you have any New Year traditions?
2 pupil: Yes, we do. One of them is decorating the New Year tree.  

1 pupil: Did you parents buy a New Year tree last year?
2 pupil: Yes, they did. And we were decorating is together all evening. And did you have a New Year party at school last year?  

1 pupil: We had a Christmas party. It was a wonderful party. We were dancing all evening.      

Диалог 2

1 pupil: What holiday is your number one spring holiday?
2 pupil:  I like Easter best 

1 pupil: Do you have any Easter traditions?
2 pupil: Yes, we do. One of them is colouring eggs.  

1 pupil: Did you help your mum to colour eggs last year?
2 pupil: Yes , I did. we were doing it together all evening. And did your parents hide chocolate eggs in the yard last Easter?  

1 pupil: Yes, they did. my sister and I were looking for them all morning.

She gave her friend a birthday present.

The car zoomed down the street at a high speed.

He completed his homework before going out to play.

The chef prepared a delicious meal for the guests.

They climbed the mountain to reach the summit.

We went to the beach to enjoy the sunshine.

The baby giggled with delight when she saw the colorful toys.

The teacher assigned the students a challenging assignment.

He delivered his speech in front of a large audience.

The company launched a new advertising campaign to promote their products.