单项选择题
A.No sooner he had leftB.No sooner had he leftC.Hardly he had leftD.Hardly had he left
A.finding opportunities for risk-free investingB.finding repeating trends and patterns in pricesC.changing prospects for earnings growth of particular firms or industriesD.forecasting technical regulatory changes
A.didn't expectedB.haven't expectedC.hadn't expectedD.wouldn't expected