Помогите, не понела.

1.How long have you been in Africa
2.I have been there for three years.
3.How long he live in Berlin
4.He lived there since 2002.
5.How long does she wear that coat
6.She wore it last winter.
7.Where have you been today
8.I have been at the hospital.
9.How long the detective looked for the man
10.He looked for him for two month.
11.Why did she take my money
12.She traveled round the world for four years.
13.Where did you put my keys
14.She moved to a new house in the country.
15.How long did your friend study German
16.She studied German since 1999.
17.Did you ever play golf
18.I already finished the documentary.
19 my teacher didnt explain that lesson yet
20.Kevin gave to his mother a nice present.
Я надеюсь тебя устроит мой ответ и всё будет правильно,если что-то будет неправильно напиши мне.Я хочу знать свои ошибки.