answer key for multiple choice review:
1b,2a,3c,4d,5d,6c,7a,8a,9d,10d,11b,12b,13a,14a,15c,16d,17c,18a,19b,20b,
21d,22b,23b,24b,25b,26a,27d,28a,29d,30b,31c,32d,33d,34a,35b,36b