If he had spent more time practicing speaking English before, he _____ able to speak it much better now.
Only when you leave school________how much you love it.
So mysteriously ______ missing that many puzzles wait to be solved.
For a moment nothing happened, and then ______ all shouting together.
---I have finished my homework. ---___________.Let’s go to play tennis.
— Did you know any French before you arrived in Washington? — Never ______ it, actually.