After his brother left school, he got employed in a construction company, and ________ there ever since.
17. ______, his idea was actually worth practicing.
16. He had already learned the news. I ______ the trouble to phone him about it.
15. The managers discussed the plan that they would like to see ______ the next year.
14. --- It’s thirty years since we last met. --- But I still remember the story, believe it or not, ______ we got lost on a rainy night.
13. ___ had they reached the 30th floor ____ they realized that they had forgotten to take the key.