You _______ late for yesterday’s class meeting, as it was so important.
Reading provides the mind only with materials of knowledge; it is thinking that makes ________ we read ours.
We have done things we ought not to have done and ________ undone things we ought to have done.
I just don’t understand ________ that prevents so many children at school from being as happy as one might expect.
— Mr. Gordon asked me to remind you of the meeting this afternoon. Don't you forget it! — Ok, I .
— Do you think our basketball team played very well yesterday? — .