1. 为下列对话选择合适的图片。

⑴—A tiger? —No, it's a cat.    A.

⑵—Act like an elephant. —OK.     B.

⑶—Wow, it's a panda. —Cool! I like it.     C.

⑷—What's this? —It's a pig.     D.

⑸—What's that? —It's a bear.     E.