Unit 040. I am, I don’t etc. A She isn’t tired, but he is. He likes tea, but she doesn’t In these examples, it is not necessary to repeat some words. You can use these verbs in the sa...

Unit 037. there is there are A There’s a man on the roof. There’s a train at 10.30. There are seven days in a week. There’s a big tree in the garden. There’s nothing on ...

Unit 029. might A Where are you going for your holidays? I’m not sure. I might go to New York. He might go to New York. (= it is possible that he will go to New York...

Unit 025. What are you doing tomorrow? A They are playing tennis (now). He is playing tennis tomorrow. We use be + -ing (present continuous) for something happening now: ...

Unit 023. be/have/do in present and past tenses A Please be quiet. I’m working. It isn’t raining at the moment. What are you doing this evening? I was working when she arrive...

Unit 021. is done, was done (passive 1) A The office is cleaned every day. The office was cleaned yesterday. Somebody cleans the office every day. (active) The office is clea...

Unit 015. I have done (present perfect 1) A His shoes are dirty. He’s cleaning his shoes. He has cleaned his shoes. (= his shoes are clean now) They are at home....

Unit 010. was/were A Now Robert is at work. At midnight last night he wasn’t at work. He was in bed. He was asleep. I am tired. (now) / I was tired last night. Where is K...

Unit 001. am/is/are A My name is Lisa. I’m 22. I’m American. I’m from Chicago. I’m a student. My father is a doctor and my mother is a journalist. I’m not married. My favourite...

기본 사례 조사 Klarna (핀테크) - “상담원 700명 분의 업무” AI가 실제 인력의 업무량을 대체한 가장 유명하고 파급력 있는 사례다. 구체적 성과: 처리량: 도입 첫 달에만 230만 건의 대화를 처리했다. 이는 전체 고객 서비스 채팅의 3분의 2에 해당한다. 효율성: 고객 만족도는 인간 상담원과 ...