He came all the way to China for learning it better _______ for making money. 

— Excuse me, could I put off this plan?— You have no right to refuse it, and just _________.

You have been working so hard------I think you _____ a holiday

Some miners are trapped when the local mine was flooded，but luckily，400 kilograms of milk ________to them during the rescue．

A great deal of science and technique has been______since China carried out reform and open policy.