现在进行时一般疑问句 — 英语情景题

Read and complete the dialogue. Sam: Hi, Tom! It's eight o'clock in the evening. Are you (1)________ your homework now? Tom: No, I'm not. I'm drawing a picture. Sam: Is your sister (2)________ TV in the living room? Tom: Yes, she is. She likes watching cartoons. Sam: Are your parents (3)________ dinner in the kitchen? Tom: No, they aren't. They're cleaning the kitchen now.