Объяснение:
1. A: Do you know where the children are?
B: Yes, they have just left for school.
(just/Leave/for school)
1. A: Can I borrow your book?
B: No, I have not read it yet.
(it/read/yet/not)
1. A: Who is that woman?
B: I don't know. I have never seen her before.
(her/before/see/never)
1. A: Is your friend going to Spain with you?
B: No, he has gone there already.
(already/there/90)
1. A: Are you going for a walk?
B: No, I have not finished my homework yet.
(yet/not/finish/my homework)
1. A: Shall I tell your sister about our engagement?
B: I have already told her.
(already/her/tell)
Объяснение:
1. Distance learning programmes are designed and edited by professionals.
2. Interactive support to the learning, training and skilling process is provided by computer-based resources.
3. Computer technology is prompted by the enormous increase in PC computing power, memory, speed and colour graphics.
4. The satisfactory completion of tasks and guided study programmes is used by most administrations.
5. In some cases the programmes are used as a supporting measure to evaluate competence.
6. Reports on practical tasks and assignments are sent via Inmarsat to tutors.
7. The mailboxes in the system are located at earth-station site.
8. Tariff data is updated by means of a plug-in software cartridge.
9. Changes to the database are passed to our enterprise purchasing systems, where each requested item is matched automatically against a database of vendor contracts.
3.did you go out
4.was wearing
5.were you driving-happened
6.was taking-wasn't looking
7.didn't know
8.saw-was trying
9.was walking-heard-was following-started
10.wanted