21.  When Japan is accused of protectionism by America, its usual response is to demur politely.

22.  The usual official response to questions about Deng is that he is in good health for a man of his age.

23.  The usual response is to assess fines after such illegal protests.

24.  But the usual short-term response to the fall of a currency, an increase in interest rates, might pose as many problems as it solved, analysts say.