To run a business on a small（）is by no means an easy job.

A.No sooner he had left
B.No sooner had he left
C.Hardly he had left
D.Hardly had he left

A.finding opportunities for risk-free investing
B.finding repeating trends and patterns in prices
C.changing prospects for earnings growth of particular firms or industries
D.forecasting technical regulatory changes

A.didn't expected
B.haven't expected
C.hadn't expected
D.wouldn't expected