The best way to travel between the centre of London and Paris Or Brussels is by Eurostar trains. They carry (many) The (one) Eurostar train trevelled along the channel tunnel after a new high-speed railway (open) on 14 November, 1994.
Since that time, the trains(be able) to travel ​

1. what do you read?

2. why are you always crying?

3. who is he?

4. where does he live?

5. when does your mother come home?

listen, ivan sings in the next room.it doesn't see that i look at it, as he reads something with a great interest.call him now. i think that he doesn't sleep yet.look at the person who sits at a window. he/she is our lawyer.

mary used to eat junk food when she was a child but now she keeps fit and prefers healthy food.

10 years ago people used to pay only in cash, but today most people have credit cards.

seven years ago i used to have a motorbike, but now it belongs to my sister as i drive a car.

when he lived in paris, he used to eat frogs every weekend, but now he lives in india and he eats indian food every second day.

when her granddaughter was a kid she used to believe that snow was made of ice cream.

1. сильно ли ученики от того, что носят в школу портфели с тяжелыми учебниками?   yes, they  do -  да 

2. вызывает ли это серьеные проблемы со здаровьем? yes, it does - да, вызывает

3. как действует зкран компьютера на глаза человека? it makes human  eyes see worse.  он ухудшает зрение человека.

4. излучает ли экран компьютера радиацию? yes, it does -  да

5. обязаны ли большенство пользователей носить очки?   yes, they do -  да, обязаны

6.  не лучше ли во многом для глаз человека пользоваться напечатанным изданием?   yes,  of course  -  конечно, да