___ he came to study in the university, he has made much progress in the study of English.
Girls used to take fewer advanced math courses than boys but now they are taking just _______.
The problem is not_______so easy as you think. It’s far from being settled.
Eric helped to explain some things about community medicine to Barack, and of course his ideas were affected by Barack _____ health care.
In front of the Great Pyramid, Mr Lee stood _____ its great height, and asked many questions.
Mom believes that those words put to paper two centuries ago really _____ something.