----- Nội dung dịch tự động từ ảnh ----- If it doesn't rain, we'll leave early in the morning. Unless it rains, we'll leave early in the morning. If we don't catch the bus, we'll walk to the next stop. Unless we catch the bus, we won't walk to the next stop. If we aren't careful, we'll fall down the stairs. Unless we careful, we won't fall down the stairs. If your hat isn't tied well, it will be blown away. Unless your hat tied well, it will be blown away. If we don't study, we won't pass the exam. Unless we study, we will pass the exam. If you don't use the sailboat, we'll use it. Unless you use the sailboat, we If she doesn't miss the train, she'll get there by this afternoon. Unless If Bill isn't at home, I don't know where he is. Unless If the museum isn't closed, we'll stay until 2. Unless