When deeply absorbed in work, ___he often was, he would forget all about eating or sleeping.
He promised that he ______ us in the party, but he hasn’t turned up until now.
There are about one million words in English. ________, most people use only about ten thousand of them.
---Mr. Jones isn’t at his desk. Where is he? ---_______. I have no idea.
A smile ______ the mother’s face when the son walked onto the platform to receive the prize.
My teacher speaks English well indeed, but of course not __ a native speaker.