Употребите формы it is или there is / there are в следующих предложениях: 1) ... important to know the details.
2) ... fifteen students in our group.
3) ... a pity you can't go with us.
4) ... too early to leave.
5) ... any news in the newspaper.
6) ... much milk in the jug.
7) ... some interesting articles in the newspaper.
8) ... not very cold today.