Вырази в заданных единицах. 900 ед= сот 700 ед= сот 400 ед= сот 800см = м 200 м= дм

ответ: 1.the building of this model can be finished very soon by these students.

2.a long interview have been given the newspaper reporters by the scientists today.

the newspaper reporters have been given a long interview by scientists today.

3.when shall be this book returned to the library?

4.we weren't at the conference as we hadn’t been invited.

5.the rule has been explained to the students for 10 minutes by the teacher.

объяснение: все как по формуле: мы оставляем глаголы (am/is/are или was/were для continuous; have/has/had для perfect) дальше прибавляем глагол для пассива to be, но меняем его в зависимости от времени (cont - being, perf - been, а смысловой глагол ставим в iii форму. формула такая: всп гл + to be + viii

с модальными глаголами can, must, should, will просто добавляем to be + viii (it can be done)