Fill in the blanks with the present perfect or the present perfect continuous. 1. a: where is sarah? b: she ( to go) to the shops with her mother and sister. 2. a: have you found the keys? b: no, i ( to look) for them all morning. 3. my mum ( to cook) dinner for two hours. 4. i ( to know ) jane since 2010. 5. peter ( to join ) the school drama club. 6. she … … … to raise money for the zoo for months.( try) 7. he … … the environment for over ten years. ( study) 8. it … … for two days ( rain).