— It’s hard to believe that Jack ________ have fought with the policeman.— Yes. If one ________ ask for trouble, it can’t be helped.

We can make a fire ______ the room warm so that we can chat for a while.

 -- What will the weather be like tomorrow? -- It ______ be rainy, cloudy or sunny. Who knows?

Brain, like muscles, also needs some kind of exercise and nutrition. The more you use your brain in the right direction, the more you ________ enhance your ability.

---Lucy doesn’t mind lending you her dictionary.---I think she doesn’t, but I ________do so. I’ve already borrowed one.