Misc: What's the capital of ecuador?

Questions

In 1976 Supersonic---------- , 1st commercial flights, by Britain & France.?

In 1977 Pres Jimmy ---------- pardons almost all Vietnam War draft evaders.?

In 1978 Bee Gees' "Saturday ---------- Fever" album goes #1 for 24 weeks.?

In 1979 Neptune becomes ---------- planet (Pluto moves closer).?

In 1990 John ---------- becomes the 1st ever expelled from the Australian Open for throwing a tantrum & swearing at an official.?