请根据提示的句子,选择答句或问句的正确答案,在前面的括号内打对号。 (1)---Can we go and play with the animals? ---___________________. ( )Yes, I can. ( )Yes, you can. (2)---Is that the post office? ---_________.The post office is next to the bank. ( )No, it isn't. ( )No, I can't. (3)---_____________? ---It's 83 yuan. ( )Can I help you? ( )How much is it? (4)---_____________? ---They're ducks. ( )What is this? ( )What are these?