Ответ:
Task 1.
1) My mother came home at 7 o’clock yesterday.
2) Sam didn't wash the dishes in the morning.
3) Dolly tidied her room two days ago.
4) We enjoyed the party yesterday.
5) I didn't see my cousin yesterday.
6) She was on a picnic with her friends last Sunday.
Task 2 .
1 She is wearing a coat because it's not cold today.
2 It is raining, so she's at home at the moment.
3 It's nine o'clock, and you are listening to the radio!
4 Pat's parents are on holiday, so she is staying with her grandparents this week.
5 Look! The children are playing in the garden.
Task 3. Make up sentences in the Present Perfect Tense.
1) They have already been to India.
2) Tim has not travelled by plane yet.
3) Has your brother ever played cricket?
4) Sally has just cleaned the house.
Объяснение: