China’s economic and social development requires more substantial reforms, as unnecessary government influence on the private sector has _______ an abuse of authority.

 All of us still remember the terrible tsunami that _____ the areas in the southeast of Asia in 2004.

—Was he still there when you were away to answer the phone?—There is no doubt about it, but he ________ soon afterwards.

Yesterday, I came across my former classmate, but his name ________ me, which made me embarrassed.

4.It is said that the early European playing-cards ____ for entertainment and education.