1. If Williamа (sleep) better at night, he а (start) his day with more energy.
2. If he а а(not/be) ill so often, he а(not/miss) so many classes.
3. If you (not/drink) so much coffee, you (sleep) better.
4. How you (feel) if you (be) the only person on Earth?
5. If I (have) longer summer holidays, I (travel) more

1. Did you find your keys yesterday? - Yes, i did.

2. Has Agata written a letter to Santa Claus? - No, she hasn't.

3. I have never been married.

4. Where did you go last night?

5. I haven't seen Olivia for more than three months.

6. Mary has lived in Moscow since 2011.

7. Have you ever been to London?

8. Last year i didn't go to Moscow because i was ill.

Объяснение:

1. В начале не будет have, а будет did.

2. После Agata wrote не правильно, written будет правильней.

3. После i всегда используется have, ошибка has.

4. После Where пишется did, а не do потому что этот вопрос задан в форме времени.

5. После haven't всегда пишется seen, а не see.

6. После Mary пишется has, a не have.

7. В начале пишется Have, а не Did.

8. После i будет didn't, а не haven't.

1. Did you find your keys yesterday? - Yes, i did.

2. Has Agata written a letter to Santa Claus? - No, she hasn't.

3. I have never been married.

4. Where did you go last night?

5. I haven't seen Olivia for more than three months.

6. Mary has lived in Moscow since 2011.

7. Have you ever been to London?

8. Last year i didn't go to Moscow because i was ill.

Объяснение:

1. В начале не будет have, а будет did.

2. После Agata wrote не правильно, written будет правильней.

3. После i всегда используется have, ошибка has.

4. После Where пишется did, а не do потому что этот вопрос задан в форме времени.

5. После haven't всегда пишется seen, а не see.

6. После Mary пишется has, a не have.

7. В начале пишется Have, а не Did.

8. После i будет didn't, а не haven't.