Образуйте форму present perfect от глаголов: work, write, make, meet, learn, ring, take, bring

Worked, written, made, met, learned,rang, took, brought. для употребления pr pef используется окончание ed для правильных глаголов, для неправильных- третья форма. удачи!

The boy must have chosen this book by himself. if he had been helped by adults, they would have never advised him to take such a boring book. 3. your friend should have gone to a doctor long ago. if he had been treated, he would have recovered from the illness long ago. 4. he, perhaps, had tried to prove to her that he was right, but he could not. she is very difficult to convince of anything. 5. he is unlikely to argue about this proposal. if he had any objections, he would have tried to find out everything during the last discussion. 6. a delegation may arrive at any time. you should prepare all the necessary documents very quickly. if i had known about this before, i would surely have warned you beforehand.

1.) We came home at 12 o'clock yesterday.

When did we come home at yesterday?

We didn't came home at 12 o'clock yesterday.

2.) Her little sister went to school last year.

When did her little sister go to school?

Her little sister didn't go to school last year.

3.) My father drove a car last Sunday.

When did my father drive a car?

My father didn't drive a car last Sunday.

4.) I saw him yesterday.

When did I see him?

I didn't see him yesterday.

5.) Carol bought her new coat yesterday.

When did Carol buy her new coat?

Carol didn't buy her new coat yesterday.

6.) They had dinner an hour ago.

When had they have dinner?

They hadn't have dinner an hour ago.

7.) She was at home yesterday.

When was she at home?

She wasn't at home yesterday.