3. 1) There isn't
2) There are not
3) There aren't
4. 1) There isn't
2) There isn't
3) There aren't
4) There aren't
5) There isn't
6) There isn't
7) There aren't
5. 1) Are there?
2) There is.
3) There are.
4) There aren't.
6. 1) Is there
2) Are there
3) Are there
4) Are there
5) Is there
6) Is there
7) Are there
8) Is there