1. 找出下列句子的答语。
⑴What's this？                                           A、Ten
⑵How many elephants are there？           B、They eat fish.
⑶Where do birds live？                             C、I helped the wolf.
⑷What do cats eat？                                 D、It's an elephant.
⑸What happened？                                  E、They live in the tree.