Heads from different countries gathered in Amsterdam and President Xi jinping _____ a speech on nuclear safety.

The support of the students ______ the losing team and they played harder, so in the end they won the game.

 In some developed countries, larger population is ______________ in their big cities.

 It _______ that Chinese football team beat Japanese team at the last moment in the Universiade in Shenzhen.

My mother asked me where _____, and I told her that I was going to buy some food.