complete the sentences. Use words from the list. Ago, during, for, in, since, to.

1.-The cell phone was invented over 30 years ago .
2.-Brasília has been the capital city of Brazil since 1960.
3.-The first laptop was produced during 1981.
4.-México has been independent for more than  200 years.
5.-World war II lasted from 1939 to 1945.
6.-Vietnam was separated into two parts ago about 30 years.
7.-East and west Germany have been united to the Berlin wall came down.