PDF chapter test TRY NOW
Choose the correct question in present perfect continuous.
Example:
Correct: How long has John been learning English?
Incorrect: How long have John been learning English? (We use 'has' with 'he')
Incorrect: How long has Boris been learnning English? (We don't double the letter 'n' when adding -ing)
![Shutterstock_715324171.jpg](https://resources.cdn.yaclass.in/59c4b1fb-72e8-45bb-97ba-c51e06bb48bc/Shutterstock715324171w300.jpg)
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