Large quantities of water , as well as some other timely help including a medical team, _____  since the serious drought hit Yunnan Province. 

 In order to stop poverty, the World Bank has ______ its focus to providing technical assistance and long-term loans to developing countries.

 When I said some students were so lazy, I ___to you.

 The prices are _____ fast these days. Nobody can get the prices _____.

-What's the matter? -The cook _____five minutes ago, and there are fifty dinners still to cook.(    )