Grammar in use. Употребление артиклей и выражений со значением количества

Ребята, проработайте упр.3, стр.140.
Ответы на следующем слайде.

Answers Ex 3,page 140
1- has been typing, has typed; 2- has been wasting, has wasted; 3-have been packing, have packed; 4- has been writing, has written; 5- has been baking, has baked.

Теперь сравним употребление Past Simple and Present Perfect
Time expressions used with the Present Perfect:
Just, ever, never, already, yet, so far, for, since, recently…
Time expressions used with the Past Simple:
Yesterday,last night/week/month/year,ago, then, when in 2017…

-Choose the correct answer/Ответы пришлите в письменном виде. Указываем цифру и букву.
1)… never played this game before.
a) I’ve b) I
2) Ron… his room last night.
a) has tidied b) tidied
3) … here since 2015?
a) Have they lived b) Did they live
4) We… to the theatre three days ago.
a) have gone b) went

Чтобы выполнить упр.7, стр31, прочитайте об артиклях в Грамматическом справочнике GR6-GR7.