David didn’t attend his daughter’s graduation ceremony, but he does wish he （ ） there.
（A）should be
（B）would be
（C）had been
（D）were
If we （ ） another road, we wouldn't have been stuck in the traffic jam for so long.
（A）have taken
（B）had taken
（C）took
（D）take
If the traffic （ ） so heavy, I could have been back by 6 o’clock.
（A）hadn’t been
（B）wasn’t
（C）couldn’t be
（D）hasn’t been
