It was not until dark____ he found____ he believed was the correct way to solve the problem.A that , that B that, what C when ,what D when , that
After breakfast, little Tony went to school by bicycle as ______.
Children are always curious ______ the unknown world.
It is believed that if an event is ______, it will surely ______ the readers of the paper.
Pay your gas bill as soon as possible, or the gas will be ______.
A Tale of Two Cities is ______ a novel. It helps us to understand the history of that time.