Read these sentences and fill in the gaps with the correct form of the verb in the past simple, present perfect or present perfect continuous. Example 0. She _________(stay) at home since Tuesday. Answer 0. has stayed Example 1. They _________ (go) to Canada many years ago. Answer 1. went Example 2. I _________ (wait) here for ten minutes. Answer 2. have been waiting 1. Peter ... (help) me for 2 hours. 2. She ... (cook) dinner yesterday. 3. He ... (know) Julie for ten years.