1- nothing
2-anything
3-anything
4-each
5-every
6- something
1)Are spent
2)Is taught
3)Were visited
4)Will be met
5)Will be introduced
6)
7)Was replaced
8)
9)Are called
10)Will be restored
1.....had....
2.....had....
3....had....
4.....had....
5....had not....
А скобки просто расскройте без изменений.