Answer — Exercise 10.2
Unit 10 - Present perfect continuous and simple·English Grammar in Use
Pregunta
Ask questions using the words in brackets. Use the present perfect simple (have/has done) or continuous (have/has been doing).
Respuesta
- How long have you been learning Arabic?
- Have you been waiting long?
- Have you caught any fish?
- How many people have you invited?
- How long have you been teaching?
- How many books have you written?; How long have you been writing books?
- How long have you been saving (money)?; How much money have you saved?