__________ is troubling me is __________ I don’t understand __________ he said.
.After the new technique was introduced the factory produced _______cars in 1994 as the year before.
I am in ________charge of the class which was in_________ charge of my wife.
In my opinion, what he told us just now about the affair simply doesn’t make any ________.
The river, _______the bank are covered with trees, is very long.
The editor’s job is to keep the newspaper_____ and________to the readers.