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Задание 3. Use must have + V3, can’t have + V3, might/could have + V3.1. Bill hasn't arrived for the meeting yet, he (get) stuck in traffic. There's no other possibility. 2. Sally's car is still parked outside her house, she (leave) for work yet because she always goes by car.3. His phone is out of battery, he (forget) to charge it. I'm certain of it.4. I'm not sure where my keys have disappeared to, but I suppose I (leave) them on my desk.5. There are puddles of water on the pavement, it (rain It's the only explanation.6. There's a mosquito in here, it (come) in through the window. No doubt about it.7. This soup is so thick and tastes so nice! They (put) a lot of cream in it.8. The boss is in a terrible mood. The meeting (be) good.9. – Helen isn’t here. I guess she (go) home. – No, she (go) home, her purse is still here.
Ответы
Остальные ,соответственно,- Present Perfect
I have built a house.
I have built a house when he came out of school
I have never built houses
I haven't built a house
Have you ever built a tower?
We built a house today
I have not yet learned words
We haven't made tutorials
They have never seen a crocodile
They haven't seen yesterday the crocodile
Так. На заметку.
Время Present Perfect обозначает действие, которое завершилось к настоящему моменту или завершено в период настоящего времени
Время Past Simple(indefinite) используется для обозначения действия, которое произошло в определенное время в и время совершения которого уже истекло