按要求完成下列句子。 1. There are a lot of pianos on the island. (变成否定句). ___________________ 2. There is a bird in the tree.(变成复数句子) ___________________ 3. There are some apples in your bag. (改为一般疑问句) ___________________ 4. There isn't any bread in the fridge. (译成汉语) ___________________ 5. on, are, the, houses, of, There, island, lots . (连词成句) ___________________