Hardly could Tom _____ this amount of homework in such a short time.
All the workers are working hard to create _____ we hope will be the best means of transport in the 21st century.
How I wish I _____ history when I was in university.
The student said there were a few points in the essay he _____ impossible to understand.
Mr. Smith, there is a man at _____front door who says he has _____important news for you. A. the; anB. /; / C. the; /D /; an
The result is not very important to us, but if we do win, then so much _______.