There are simple sentences, compound sentences, complex sentences, and compound/complex sentences.
Which is which?
1/ The magazine lying on the counter contained several extremely interesting articles on the upcoming elections.
2/ My cold grew worse, so I decided to see a doctor.
3/ Although I practiced for three months, I failed my driving test.
4/ Because it was a cold day, I wore my parka and heavy boots, but I forgot my gloves.
5/ I began spending money recklessly.
6/ I made sure to check my money before I invited George out for lunch.
7/ After I returned to school following a long illness, the Math teacher gave me makeup problems, the History teacher assigned me extra homework, but the English teacher made me drop her course.
8/ The construction workers ate their lunch under the porch, for it was raining.
9/ Even though my computer has just been repaired, the screen keeps freezing, and I have to constantly reboot the system.
10/ George dressed the turkey, and his brother greased the roasting pan.
11/ When Elvis lost his temper, he also lost his job.
12/ The tugboat chugged slowly into the harbor.