1.he (have waited\ have been waiting) for a reply several weeks and steal (have not received\ havent been receiving\ have received) any answer. 2.Galileo is supposed ( have invited \ having invented\ to invent\ to have invented) the telescope 3. it ( ought\ may/ will have to\ will ba able to) be cold tommorow
He has been waiting for a reply for several weeks and hasn't received any answer.Galileo is supposed to have invented the telescope.It may be cold tomorrow.