3. correct the mistakes if any.
1. they are discussing the problem for hours, but has not solved it yet.
2. john has been winning the championship two times.
3. mike has invited many friends to his birthday party.
4. translate into english using either present perfect or present perfect
continuous.
1. моя жена рисует (draw/drew/drawn) уже 5 лет, но ещё не продала
(sell/sold/sold) ни одной картины.
2. ник съел все конфеты.
3. вы когда-нибудь играли в шахматы (chess)?