A． She had her vacation there.
B． She took a diving course there.
C． She was there on a field trip.
D． She visited a marine exhibition.

A． I have to review French.
B． I have studied French for five years in Paris.
C． I have to discuss with some French people from Paris.
D． I can meet a Polish during the negotiation in Paris.

A． American workers tend to stay in one job.
B． Crop dusting jobs in American are few.
C． The mob moved very slowly.
D． Their relatives live in a mobile home.