Who is the best quiz contestant in the country

he must know some foreign languages. he  must work now over the new novel. now they must enjoy fine weather.

1.  the article having been read we knew the subject much better. b)  так как статья была прочитана; 2.  having stopped the computer he left the shop. d)  остановив компьютер.

3. the operating machine was installed in the shop. a)  работающая машина; 4.  having installed the new computer we obtained the results of the calculations quicker.

a)  установив новый компьютер;