какие из этих слов (Неправильные формы множественного числа)

of books (discuss) in class tomorrow?

3. Our teacher often (ask) to translate articles from English into Ukrainian as she has been teaching English for about thirty years.

4. Many new houses (build) in Sumy last year.

5. These exercises must (do) by our group now.

6. The delegation of English farmers (not meet) at the railway station yesterday.

7. The problem (not solve) yet by us.

8. He (tell) to work harder if he wants to pass an examination.

9. When the letter (read) by him it was thrown away.

10. As soon as his driving test (pass) by him he bought a car.

неисчисляемыми. Поставьте исчисляемые существительные в форму множественного числа.
Electricity, dictionary, hydrogen, money, ink, English, baggage, mail, coffee, honesty, furniture,toothbrush, orange, ice, information, telephone, vocabulary, forest, letter, tea, car, rain, song, music, time,story, river, water, flower, friend, photo, friendship, advice, meat, paper, egg, weather, wine, man, cheese.