Sally Smith sent the postcard from ___________.

A．Barcelona, Spain	B．Boston, USA
C．Mexico City, Mexico	D．Bangkok, Thailand

Bill will probably be back in____________.

A．a day	B．a week
C．two weeks	D．a month

Which of the following is mentioned in the three postcards?

A．Barcelona is a big city.	B．Mexico city is very hot.
C．Bangkok is a very old city.	D．Mexico City is small but beautiful.