问一道初一英语题Let us enjoy watching TV 的watch为什么加ing

问一道初一英语题Let us enjoy watching TV 的watch为什么加ing We enjoy watching TV.请问为什么watching要加ing he likes watching tv 为什么watch加ing Do you like watching TV为什么WATCH要加ING They are watching TV watch为什么要加ing 为什么He likes watching soccer on TV的watch要加ING? 英语好的进,my car needs washing.I enjoy watching TV等等为什么要加ing 我的爱好是看电视.My hobbly is watching Tv.在这里watch为什么要加ing? Watching TV为什么要加ing "Watching TV sounds interesting."中的“watch”后为什么要加"ing" I think watching TV is a waste of time .这里watch为什么要加ing? 为什么I like watching TV中用watch,而Let’s watch TV中用watch,在I watch