Question 2 (1,25 pts): Join each of the following pairs of sentences with "or, and, but, so or because" 1. I told a joke. Nobody laughed. 2. You must study harder. You will go into another class. 3.. The city suffers from air pollution. The city suffers from water pollution. 4.. I knew her family. I did what I could for her. 5. We can't afford energy-saving light bulbs. The light bulbs are too expensive.