Question

Find the sentence which contains an error in parallel structure. -In driver's education classes, we learned that we should reduce the speed of the automobile after dark and to pump the brakes when stopping on wet pavement. -In driver's education classes, we learned that we should reduce the speed of the automobile after dark and that we should pump the brakes when stopping on wet pavement. -In driver's education classes, we learned to reduce the speed of the automobile after dark and to pump the brakes when stopping on wet pavement.

Answer 1

The first one. In the second one, both verbs have "we should" before them. In the third one, both verbs have "to" before them. However the first one does not have a similarity like this.