.At last, we found ourselves in a pleasant park with trees providing shade and __________down to eat our picnic lunch.
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? — .
Though money, his parents still managed to send him to university.