I think watching TV is a waste of time .这里watch为什么要加ing?

I'm watching TV. I think watching TV too much is bad for our eyes.改为同义句.改为 I （ ）think watching TV too much ( ) ( )for our eyes. I find watching TV boring I THINK （ ） WITH FRIENDS IS BETTER THAN （ ） A：CHAT；WATCH TV B：CHATTING；WATCHING TV...I THINK （ ） WITH FRIENDS IS BETTER THAN （ ）A：CHAT；WATCH TVB：CHATTING；WATCHING TVC：CHAT；WATCHING TVD：CHATTING；WATCH TV What do you think of watching TV? .I think time__________________(spend) in watching TV is too long.为什么写Spent, I think watching TV is a waste of time .这里watch为什么要加ing? I think watching TV is boring but relaxing为什么不是is relaxing 以What do I think of watching TV为话题写英语范文 是I like watch TV,还是I like watching TV I am watching TV.改成一般疑问句 I enjoy watching TV.(一般疑问句) I like watching TV.一般疑问句 I'd like watching TV at home. I pref watching TV to reading the I like watching the swimming r__on TV I am watching TV about football是什么意思? I was watching TV 什么意思