Make up sentences using the Past Perfect Tense (утворіть речення,

використовуючи минулий завершений час).

1. Mary ______ (to teach) French by 2015.

2. The children _______ ( to watch) TV for an hour when I came.

3. He _____ already ____ (to live) here for 10 years.

4. They ______ (to finish) the work by the end of May