According to scientists, our mental abilities begin to _______ from the age of 27 after reaching the highest level at 22.
I can hardly imagine myself _monitor of our class.
There was so much smoke in the factory the workers were working _the firefighters couldn’t see clearly.
After graduation, he worked as a lawyer, .
The chair was too weak to Mr. Smith.
1 Professor James will give us a lecture on the Western culture, but when and where yet.