Everything comes with price;there is no such thing as free lunch inthe world.

Simon made a big bamboo box _____the little sick bird till it could fly.[ ]

You’re coughing badly, Martin．Why not give up smoking?—- Give up smoking? Easier said than done, Amy．Once you _____ the habit of smoking, it is very hard for you to______．

Mary, let’s go to the bookshop this weekend. Will you be ______? —Sorry, but I’m going to visit my uncle in the countryside.

We ________ our lives had it not been for the policeman.