阅读选择。

Today is Mary's birthday party. There's lots of food for all her friends. First they play lots of games. Mary is dancing in the living room. She likes dancing. She is good at dancing. Joe loves running. He's running in the yard. Joe's wearing his favourite running shoes. Sam likes jumping in the park. He can jump a long way. Kelly is jumping too. She's jumping up and down. Now, Mary's friends are hungry. The cake is lovely. Mary doesn't want to cut it. She is looking at her cake. What a wonderful birthday.

⑴    A. running

⑵   B. looking

⑶ C. dancing

⑷   D. jumping