Young Lee learned some English when she stayed in America, and last year she ____ herself Japanese.
We had to __________ e-mails to over 600 people to inform them of the change of location.
She has been __________ of the danger of driving the car in that state.
My parents live in a small village. They always keep some candles in the house __________ there is a power off.
We've worked out a method __________ our production can be greatly raised.
Part of the reason Charles Dickens loved his own novel, David Copper field, was __________ it was rather closely modeled on his own life.