________ busy schoolwork, the children also have to take arts, music and sports classes in their free time.— I wonder what they will become.[ ]

Jim and his friends had great funatthe pool.

Facts prove that the world’s economic development isnot a win-lose game but one in which all ______ be winners.

We must be______that this year might be the worst in recent times for our economic development.

I requested _____ talking. Which of the following is wrong? [ ]