a) Study the key words of the unit in the dictionary at the back of this book:
option, rate, transaction, currency, quotation;
b) Think of the verbs that are most commonly used with:
currency, deals, trading, price, trading activities, restrictions, operations, quotations, financial flows;
c) Think of the nouns that are most often used with:
to exchange, to sell, to buy, to express, to obtain, to deliver, to trade, to clear, to settle, to set, to convert, to determine, to express, to hedge, to shift;