IV.Complete the following sentences with must, mustn't or needn't. 1. You ... take an umbrella. It ist't going to rain. 2. Come on. We ... hurry. We seem to be late. 3. Well, it ... be big - that's not important. But it ... have a nice garden - that's essential. 4. It is a valuabla book and you ... lose it. 5. I think I ... go shopping. We've run out of food.