Dear Moderators and friends
Source: GMATPrep 06
If Charles had spent half as much time attending his classes as he did complaining about them, he would have been a good student.
A had spent half as much time attending his classes as he did complaining
B had spent half as much time to attend his classes as he did to complain
C were to spend half as much time attending his classes as he does complaining
D were to spend half as much time attending his classes as complaining
E. should spend half as much time attending his classes as to complain
OA: A
I chose D because of the "were to spend"
How do we differentiate between "had spent" & "were to spend"?
Thank you.
KH[/u]