How many holidays do russian schoolchildren have a year? сколько праздников российские школьники за год? как правильно перевести?

they went to the cinema.

they did not go to the cinema.

did they go to the cinema?

she bought a new computer.

she did not buy a new computer.

did she buy a new computer?

she studied for a history test.

she did not study for a history test.

did she study for a history test?

there were two thousand people at the concert.

there were not 2000 people at the concert.

were there 2000 people at the concert?

he called ten minutes ago.

he did not call 10 minutes ago.

did he call 10 minutes ago?

the film started at 9: 00.

the film did not start at 9: 00.

did the film start at 9: 00?

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