On a 4 hour time frame, AUDUSD has been on a strong bullish run for the past weeks. I have indicated the section where price came back to test the support of the ascending trend line on a 4 hour chart. The zone I marked out are strong zones that price did not drop below after they must have formed their head and shoulder patterns. You can see where I marked them out twice. If price comes back to 0.72220, the trade idea will be invalid (Stop Loss).