Ex.8. Insert the present indefinite passive, the present
continuous passive, the present perfect passive.
1.Each chapter of the
book is written by a different person.
2. The rise is fairly and maximum
level is being reached in about two hours.
3. The term is being used now to mean guite a
different phenomenon.
4. High-speed industrial methods has been used in
building.
5. The following hypothesis is presented for discussion.
6. Since
Thomas Young it has been recognized that normal human colour vision is
trivariant.
7. In the past few years significant progress has been made in
answering some of these guestions.
8. The research undertaken in their
laboratory a year ago is being completed now .
9. These phenomena is also influenced by lattice effects.
10. The dimensions of the solar system are determined by the extreme orbit of Pluto which is slightly
elliptical.
11. Experimental observations are now being made with a view to
establishing certain facts.
12. No material basis is now being provided for such
extensive studies.
13. Even this problem hasn't been solved yet.
Такое ощущение, что все это сочинял русскоговорящий товарищ, довольно странная лексика и времена странно употребляются.Надеюсь, мне удалось понять логику автора)