209. Very loud ______ can make people ill, or even drive them mad.
She is so______ to his English teaching that I admire for his______.
We can't _____ one to change the habits of a lifetime in a short time.
It was necessary to _____ the factory building as the company was doing more and more business. extend B. increase C. lengthenD. magnify
On turning the corner, we saw the road _____ steeply.
----- How do find the boy at home? ------_______.