7 класс. Помогите пожалуйста!!! Английский. Вставить since и for
1. How long has he been here?- For 20 minutes./ ... 2 o'clock.
2. How long have you known her?- ... last year./ ... ages.
3. How long hasn't she eaten fast food?- ... half a year./ ... April.
4. How long have you had your trainers?- ... summer./ ... a few months.
5. How long haven't they seen Tess?- ... about a week./ ... Friday.
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Ответ:

1. How long has he been here?- For 20 minutes (в течение 20 минут)./ since 2 o'clock (с двух часов).

2. How long have you known her?- since last year (с прошлого года)./ for ages (уже много лет).

3. How long hasn't she eaten fast food?- for half a year (в течение полугода)./ since April (с апреля).

4. How long have you had your trainers?- since summer ( с лета)./ for a few months (в течение нескольких месяцев).

5. How long haven't they seen Tess?- for about a week (около- в течение недели)./ since Friday.

for  используется — когда указывается промежуток времени

since -  точное время ( с двух часов, с прошлого года, с лета...)