Потому что это герундий. Иногда перед герундием может стоять предлог, в данном случае "by playing" означает "проигрывая" (деепричастие) или "путем проигрывания".
2 Where are they?
3 Is Jay Mexican?
4 Has Ana got any English friends?
5 Is she homesick?
6 Where does she come from?
7 Whats Ana studying?
8 Does Jay live in Veracruz?
1. We have just studied your latest catalogs and we believe that model C meets our requirements.
2Have you discussed the price of the equipment?
3.We have never traded with "Bell end Ko"
4.- Have you ever been in London?
-Yes , was.
5.This month we have a contract for office equipment "Braun end Ko"
6. We have not yet agreed to meet with German businessmen.
7. Recently, this company introduced several
new models.
8. Have you ever been to the Rolan cinema?
- No, I have never been there.
9. This year the firm advertised its products in newspapers and
magazines.
Маленькая Джилл смотрит телевизор на улице
My favourite cartoon character is Spiderman. Spiderman has super power. He is the greatest hero,who <span>saves people and fights against bad guys. Nobody knows his face as he wears a
blue-and-red uniform. The uniform is made of latex. He uses spider threads that helps him to move fast. <span>
Перевод: </span></span>Мой любимый персонаж мультфильма Человек-паук. Человек-паук обладает супер силой. Он величайший герой, который спасает людей и борется с плохими парнями. Никто не знает его в лицо, так как он носит сине- красную форму. Форма изготовлен из латекса. Он использует паутиную нить, которая помогают ему быстро передвигаться.