Переделайте следующие предложение в страдательный залог, сделав подлежащим из скобок:
He studies (english) at the technical school;
I have written (a translation of english text) the day before;
She had done (the written work) by 6 o'clock yesterday;
She bought (an english dictionary) last month;
Mary visited (many places of interest) in london;
She had translated (the text) by 6 o'clock;
He stadies (english) at the institute;
We have bought (a computer) in moscow.

English is studied by him at the technical school;

A translation of english text has been written by me the day before;

The written work had been done by her by 6 o'clock yesterday;

An english dictionary was bought by her last month;

Many places of interest were visited by Mary in London;

The text had been translated by her by 6 o'clock;

English is studied by him at the institute;

A computer has been bought  by us in Moscow.