为什么he is having lunch at home now.中的having不用hasing?

为什么he is having lunch at home now.中的having不用hasing? He is having a good time.为什么用having而不用hasing . he is not having lunch at home now 用often改写 He usually is having lunch now哪错了 are they having lunch at home now?用every day 替换 now 1.Tom is having lunch at hone.(用just now改写） Tom ___ lunch at The Whites is having lunch at home.The是A部分,is having是B部分,at是 Tom is having?has?is hasing?have) a girl friend now. he is having lunch改为否定句 二单元测试卷,tom,having,lunch,at,home,is.怎样拼成一句话. she is having breakfast at home now（用onSundays换now）怎么写? are you having lunch at home? 肯定回答