8. when/your sister/come back/from her holiday? 9. water/cover/80 per cent/of the earth's surface?
10. how many people/speak/English/as a first language?
11. what language/those/people/speak?

When will your sister come back from her holidays ?

Water is covering 80% of the earth's surface

How many people does speak in English as a first language

What language does those people speaking?

Объяснение:

8) when your sister come back from her holiday?

9) cover water 80 percent of the earth's surface?

10) how many people speak English as a first language?

11) What language those people speak?

а что тут надо делать? все по порядку вроде

get up! it's nearly eight.

1. two new engineers just were introduced to the head of the department.2. i am sure i will be asked at the lesson tomorrow.3. they told me that the new student was spoken much about.4. he said that the grandmother's letter was received the day before.5. this new dictionary was sold everywhere now.6. all the texts were looked through yesterday and a single mistake was found.