—Your mother becomes more and more forgetful. —Yes. She searched for her cellphone for a whole day last Sunday but it ______ in her coat pocket the next day.
There are some police cars in front. What do you suppose _____?
The great use of school education is not so much to teach you things ____ to teach you the art of learning.
Modern science and technology has _____ communication between people far apart.
It _____ quite a few years _____ the accused was declared innocent and set free.
I'm not ____ my best tonight. I'd better not have anything for supper. Perhaps you'd_____me some tea.