Put the verb in brackets in proper tense form, active or passive. 1. The Internet, a global computer network, (to design) to survive a nuclear war.
2. Smart cards can (to use) as a debit card.
3. The most labour-intensive operations (to perform) now by automatic systems.
4. The Apple II (to debut) at the first West Coast Computer Fair in San Francisco
in 1977.
5. A thermal printer (to use) heated wires to print character on special heat
sensitive paper.​

Hello, dear Rita Klein!
We read your letter, and I agree with you about this. But we also ask you to login into our situation, because we both made our changes or working section or not depends on the government, because they emit a small amount of money for our school. Of course with queues to do anything will be difficult, after all, like you want to eat and drink and to restrict some at the expense of others is not eligible. Of course we don't leave it idle and try to still do something with sections and will try to dissolve the queue in the dining room, but it all takes time. We also recommend you to write a letter to the city administration and there to explain everything just as well as we do.
Sincerely, school news and director!

1 -- 3
2 -- 2
3 -- 4
4 -- 1
5 -- Mary is playing the piano very well, isn't she?
6 -- He was listening to the concert on TV at 7 p.m., wasn't he?
7 -- Have you been to Paris?
8 -- By six o’clock yesterday you had done your homework and at six you were  watching a videofilm.
 9 -- (By 1 o’clock the girl had come home and at two she was having dinner.)
или:  By 4 o'clock the girl came home and at two she was having dinner.
10 --My parents came home by six o’clock.
11 -- The police will have arrested the thief by the next morning.
12 -- If they can do it then they will have fulfilled their mission.