Правильный ответ
Правильный ответ: has/have been + root form of verb + -ing
Варианты ответа
- A.has/have been + root form of verb + -ingверно
- B.has/have be + root form of verb + -ing
- C.has/have was + root form of verb + -ing
- D.has/have being + root form of verb + -ing