I originally studied / have studied engineering at university.  2. I've been trying / have tried to find a permanent job for a long time.
3. In my first job, I was / I have been responsible for marketing. 
4. The last job I applied / have applied for required applicants to speak some Chinese. 
5. I have been waiting / have waited for a reply for several weeks and I still have not received / did not receive any answer. 
6. How long have you been learning / have you learned English?  You speak really fluently.  ​

 Даю перевод и примерные ответы.
Ты живешь в Лондоне? Yes I live in London.
Тебе нравится там? I like it very well.
Ты ешь рыбу с картошкой? Yes I eat it.
Ты смотришь телевизор? I watch tv every day.
Ты ездишь по правой стороне? Yes sure.
У тебя есть машина? Yes I have a car.
Ты ходишь (посещаешь) Оксфорд? Yes I do / No I don't.
Ты изучаешь компьютеры? I learn it / No I don't.
Ты танцуешь и поешь? I dance and sing
Ты знаешь принца Чарльза? I know Prince Charlse but we didn't meet.
Ты знаешь королеву? I didn't know her / либо ответ как в предыдущем вопросе.

1.Hello my dear friend! I want to tell you that I visited attractions.I especially liked the hills with steep slopes! I'm not scared! It was very fun! Yet there was a huge Ferris wheel! I tried to ride on it! It was so interesting to look at our city Zelek!There was a lot of interesting things. Dear friend, the next time I will definitely take you with me!

или

2.

Dear Tom,

 

Thank you for your letter. Sorry, I have not written you, because I was very busy.

 

As for me, I am going to visit you next week. Firstly, I think it will be great to go shopping . Thus, we can buy a lot of different things. Secondly, I want to visit a new museum. Frankly speaking, I have heard that there are a lot of beautiful pictures in it. Moreover, I want to meet your new friend. We can together go to the cinema.

 

By the way, what are you going to do? Will we visit your grandmother? What do you want to show me? And how about going to the club?

 

Drop me a line. I miss you.