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

 He never    to help others in trouble because he is a kind-hearted man. 

She put the sugar and butter into a bowl and ________ them up.

The army officer _______ his men to fire as soon as the enemies came up.

Many single parents      with the dilemma of dividing time between work and children。