What shall human beings do if oilsometimein the future

Would you like to visit Kun Ming by yourself this summer vocation –I’m not sure. I _____go there with my parents because of the terrible thing at the railway station.

_______ a precious diamond necklace for his wife, Martin could hardly afford a tie for himself. [ ]

The door ________ open, no matter how hard she pushed.

You will have an idea of what a hard life the working people________at that time after you read the book. [ ]