mng có thể giải thích tại sao chọn những câu dưới đây được ko ạ, mấy câu in hoa là những câu mình đã sửa theo đáp án trong sách
1) Each song ( ONLY COSTS/ is only costing ) 50 cents at the moment because they're on special offer
2) I think ( I RECOGNISE/ I'm recognising ) that woman over there. Wasn't she on that quiz show last night
3) Excuse me, ( DOES THE NUT CAKE CONTAIN/ is the nut cake containing ) walnuts? I'm allergic to them
4) The number you have dialled (DOES NOT EXSIST/ is not existing ). please try again
5) I want everyone to do exercise H, and that ( INCLUDES/ is including ) you too, Anne!
6) Right now, my job ( INVOLVES/ is involving) a huge amount of foreign travel