The telegram ... when they received the letter.
a) had been delivered
<span><span>1) I have not liked the school uniform since I was 12.
</span>2) I </span><span><span> have already got a lot of friends at school.
</span>3) I wish our </span>music lessons <span><span><span> to have </span>been on Mondays.
</span><span>4) He has known this subject since he was 6.
</span>5) If I could sing, I would </span><span><span> have become a singer.
</span>6) She has </span><span><span>been in London two times.
</span><span>7) Have you met my sister this week?
</span>8) We </span><span><span> have worked hard at this lesson.
</span><span>9) Your brother has asked me to help him.
</span><span>10) She has asked us what we wanted to do in the evening.
</span><span>11) I have suggested going to the theater.
</span><span>12) My friend has said that he wants to have his own style.
</span><span>13) We have never snowboarded, have we?
</span><span>14) I would like the weather to have been warmer.
</span>15) The exam in Russian has been as important as mathematics.</span>
Здесь не во всех предложениях уместна <span>форма present perfect.</span>
Только второе смогла:
1.B
2.B
3.B
4.A
5.A
6.B
This holiday started in Ireland. Halloween was originally a festival of the dead. It is celebrated on the 31st of October. Halloween means All Hallows Eve.
Источник: История праздника Хэллоуин (текст на английском) http://englishstory.ru/some-more-about-halloween-istoriya-proishozhdeniya-prazdnika.html#ixzz5G9Q2iVbP
When my mother came home I was doing my homework
When my mother came home I had already done my homework
When my mother came home I had been doing my homework