Underline seven mistakes with the present perfect and past simple in the email.

Let's identify the seven mistakes in the email related to the present perfect and past simple tenses. 1. "It's been ages since I haven't heard from you!" should be "It's been ages since I heard from you!" or "It hasn't been ages since I heard from you!". The first "haven't heard" is incorrect here because "since" already implies a negative sense. 2. "I learn a lot of things from it since then." should be "I have learned a lot of things from it since then." We need to use the present perfect tense with 'since then' to show an action that started in the past and continues to the present. 3. "I've the British Museum." should be "I've been to the British Museum." This is present perfect and implies that the author has visited the British Museum. 4. "I've went shopping in a market yesterday..." should be "I went shopping in a market yesterday..." Since 'yesterday' indicates a specific time in the past, we should use the past simple tense, not the present perfect. 5. "They have only cost me £20." should be "They only cost me £20." The action of costing happened in the past, so we use the past simple tense. So, here are the corrected sentences: * It's been ages since I heard from you! * I have learned a lot of things from it since then. * I've been to the British Museum. * I went shopping in a market yesterday... * They only cost me £20. Explanation for students: * Present Perfect: Used to describe actions that started in the past and continue to the present or have a result that affects the present. Key words often include 'since', 'for', 'already', 'yet', 'ever', 'never'. Example: "I have lived here for five years." * Past Simple: Used to describe completed actions at a specific time in the past. Key words often include 'yesterday', 'last week', 'ago'. Example: "I went to the store yesterday." Let's correct the email with the identified mistakes: Hi David, It's been ages since I heard from you! I'm in London now. I'm studying at the Camden School of English! I met lots of people from all over the world here. The teacher is good and the textbook she gave us at the beginning of the course is very interesting. I have learned a lot of things from it since then. Every day, after class, we go into the centre of London. I've already done lots of things! I've been to the British Museum. It was great! I went shopping in a market yesterday and bought some clothes. I've bought three T-shirts in the market because they were very cheap and they look really nice. They only cost me £20. Right, I must go now. I've got to study for an English test tomorrow - it's on the present perfect. Love, Danuta **Перевод на русский:** Привет, Давид, Целая вечность прошла с тех пор, как я слышала о тебе! Я сейчас в Лондоне. Я учусь в Кэмденской школе английского языка! Я встретила много людей со всего мира. Учитель хороший, и учебник, который она дала нам в начале курса, очень интересный. Я многому научилась с тех пор. Каждый день после занятий мы ходим в центр Лондона. Я уже многое сделала! Я была в Британском музее. Это было здорово! Я ходила по магазинам на рынке вчера и купила немного одежды. Я купила три футболки на рынке, потому что они были очень дешевыми и выглядят очень красиво. Они стоили мне всего 20 фунтов стерлингов. Ладно, я должна идти. Мне нужно готовиться к завтрашнему тесту по английскому языку - он по Present Perfect. С любовью, Данута