Answer — Exercise 9.4
Unit 9 - Present perfect continuous·English Grammar in Use
Câu hỏi
Put the verb into the present continuous (I am -ing) or present perfect continuous (I have been -ing).
Câu trả lời
- Maria has been learning
- I've been looking
- are you looking
- She's been teaching
- I've been thinking
- he's working
- She's been working