1. Choose the correct verb form to complete the sentences.
Before he finished the 5th grade he wrote/ had written his first computer programme.
When she went to secondary school she started/ had started learning new subjects.
They felt much better after they finished/ had finished the project.
Before he moved to Moscow he never was/ had never been there.
The room was empty. Everyone left/ had left.
He worked hard and won/ had won the competition.
He won the competition because he worked/ had worked hard.
Tetris first (1) ______________________ (appear) in Russia around 1985 and was never patented. The original authors of Tetris (2) ________________ (be) Alexey Pazhitnov, Dmitry Pavlovsky and Vadim Gerasimov. Computer engineers Alexey Pazhitnov and Dmitry Pavlovsky (3) ____________________ (work) together at the Computer Centre of the Russian Academy of Sciences. Alexey Pazhitnov (4) ______________ (already/ publish and sell) several psychology based games. Dmitry Pavlovsky (5) _____________________ (write) several computer games by that time. High school student Vadim Gerasimov who was only six teen at that time, (6) ______________________ (just/ write) a programme for MS DOS when he joined the group. It was Alexey Pazhitnov who first (7) ______________________ (design) the Tetris game. Alexey Pazhitnov and Henk Rogers later (8) _____________________ (found) the Tetris Company.
Choose the correct verb form to complete the sentences.
Before he finished the 5th grade he wrote/ had written his first computer programme.
When she went to secondary school she started/ had started learning new subjects.
They felt much better after they finished/ had finished the project.
Before he moved to Moscow he never was/ had never been there.
The room was empty. Everyone left/ had left.
He worked hard and won/ had won the competition.
He won the competition because he worked/ had worked hard.
Tetris first (1) ______________________ (appear) in Russia around 1985 and was never patented. The original authors of Tetris (2) ________________ (be) Alexey Pazhitnov, Dmitry Pavlovsky and Vadim Gerasimov. Computer engineers Alexey Pazhitnov and Dmitry Pavlovsky (3) ____________________ (work) together at the Computer Centre of the Russian Academy of Sciences. Alexey Pazhitnov (4) ______________ (already/ publish and sell) several psychology based games. Dmitry Pavlovsky (5) _____________________ (write) several computer games by that time. High school student Vadim Gerasimov who was only six teen at that time, (6) ______________________ (just/ write) a programme for MS DOS when he joined the group. It was Alexey Pazhitnov who first (7) ______________________ (design) the Tetris game. Alexey Pazhitnov and Henk Rogers later (8) _____________________ (found) the Tetris Company.