Chọn đáp án thích hợp để hoàn thành các câu sau : 1, could you come ....... Fiday afternoon ? ( on , in , at , of ) 2, hoa is very ....... In the water - fetching contest ( interest , interests , interesting , interested ) 3, chatting on the internet is ........ Do you think so ? ( consumed - time , consuming-time , time-consuming , time-consumed ) 4, have you ever been to Phong Nha ........ In vietnam ? ( place , cave , reef , bay ) 5, thanks for inviting me to the rice- cooking ...... ( meeting , festival , race , crowd ) 6, he fell off the ladder ....... Painting his house . ( becauso , so , since , while ) 7, would you mind ....... The door for me ? ( open , opening , to open , opens ) 8, Bao is ...... Forgetting his homework ( always , usually , sometimes , rarely ) 9, lan showed me where ...... Tickets ( get , getting , to get , how to get ) 10, I don't think he can do it ........ ( myself , yourself , herself , himself )