What are you doing为什么要加ing
What are you doing为什么要加ing
what are you doing do为什么加ing
英语中的问题英语中What do you like doing?中的doing为什么要加ing呢?
what are you doing for vacation?doing为什么用ing形式啊
What are you talking about?为什么talk加ing
how are you doing?为什么do要加ing?而How do you do的do就不需要?
what are you doing for vacation为什么用ing形式和for啊
What were you doing at 7:30 last night? 请问do为什么加ing
are doing some reading为什么doing和reading要同时加ing?
what are you doing,为什么要用are?
Are you interested in surfing?为什么surf要加ing?
为什么how are you feeling?要加ing