France hosted the 1938 FIFA World Cup and 1998 FIFA World Cup.
Paraguay did not host FIFA World Cup.
It depends, the city needs to send a bid to host the World Cup. To my knowledge, FIFA picks different continents to host each time. 2010 - Africa, 2014 - South America, 2018 - North America. When its Europe's turn, different countries will present a bid, and FIFA picks one of them.
Italy was chosen as the host for the 1934 and 1990 FIFA World Cups.
Brazil was the host country of 1950 FIFA World Cup. Brazil will host the 2014 FIFA World Cup.
They haven't bidded for the 2018 and 2022 FIFA World Cups because they haven't enough stadiums. It could be 2026 or 2030.
Qatar will host the 2022 world cup.
Paraguay didn't host the FIFA World Cup.
France hosted the FIFA World Cup in 1938 and in 1998.
Italy hosted the FIFA World Cup in 1934 and in 1990.
There are no current plans to host a FIFA World Cup in the Philippines.