He failed in the exams and only then _____ how much time he had wasted.
Besides being short, a good dialogue must be ______ in such a way that the speakers’ parts are balanced.
Though he is _____ worker, he works very hard.
The purpose of the research had a more different meaning for them than ________.
---I can’t manage this Sunday. Another time, but not Sunday. ---Why _____ me earlier? I’ve been looking forward to it.
You should take an umbrella with you ____ it might rain on the way.