为什么要用watches?

He only watches them on TV,其中为什么要用watches I often watches TV ,watches 后为什么要加es On Sunday evening,Sam usually （watches TV）.括号中为什么要填watches T watches My father (watches Tv)every night,watch后面为什么要加es his brother often watches tv in the living room为什么生活要加ing my mum是用watch还是watches? Lucy watches TV every evening怎么变否定句 为什么 请问,"seven hundred watches "中,hundred 可不可以加 s ,为什么? 用 TV,often,on,he,watches,games,basketball连成一句话 my favorite invention用 is watch 还是are watches? He usually watches TV at night.用now,listen