Please do the following exercises:
Present perfect continuous:
https://www.perfect-english-grammar.com/past-perfect-continuous-exercise-1.html
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https://www.perfect-english-grammar.com/past-perfect-continuous-past-simple-exercise-1.html
Degrees of comparison:
http://www.learnenglishfeelgood.com/english-comparative-superlative1.html
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http://www.learnenglishfeelgood.com/english-comparative-superlative2.html