Section A: Find the subordinating conjunction in each sentence below.
1. If you are in the area, I hope you will visit.
2. I found a penny while I was mowing the lawn.
3. The dog is whining because he wants to go out.
4. After I do the laundry, we can go for a bike ride.
5. The gutters get clogged when it rains.
6. Our teacher let us have extra study time since she had something else to do.
7. I’d better close the windows before the storm arrives.
8. Before you buy a new mixer, I’ll try to fix this old one.
Section B: Decide whether or not each complex sentence below needs a comma. If the sentence needs a comma, write down the words on either side of where the comma should be.
9. We will be late to the concert because the traffic is bad.
10. When you leave the windows open the rain makes puddles on the floor.
11. I’ll stop at the store after I finish up at work.
12. If that package arrives put it on the back porch.
Answers: 1-if; 2-while; 3-because; 4-after; 5-when; 6-since; 7-before; 8-before; 9-no comma; 10-open,the; 11-no comma; 12-arrives, put.