Преобразуйте предложения, поставив существительные во множественное число. 1)I read this book last year. 2) He works for a big firm of designers. 3) She has been writing the article for one hour. 4) There is an office near our house.
Book-books firm-firms article-articles office-offices
I read these books last years. The works for A big firms of designers. The has been writing the articles for some hours. There are an office near our houses.
*offices