The key to exercise solutions in chapter Workbook 3 - Techie life for the textbook Performer B1, Vol. 2 with authors Marina Spiazzi, Marina Tavella e Margaret Layton from Zanichelli
Question
Correct the mistakes in the sentences.
Answer
The computer has been processing data since this morning.
I've been waiting here for ages. Where have you been?
Paul has texted his friends five times today.
How long have you had this pen drive?
Have you seen this TV series twice?
'What have you been doing all morning?' 'I've been studying History.'
They've known their neighbours for two weeks.
'Why are you sweating?' 'We've been redecorating the sitting room.'