Fill in the gaps . use mustn't or needn't. 1.you wash up. i can do it. 2.you join this queue to the cafe. i've got sandwiches and coke. 3.you open this door. it's broken. 4.you go out. it's very cold. 5.you translate this text. 6.you go shopping. we've got a lot of food. 7.you read this book. it's not for children.