“This book is ______ more useful for us students.” “Yes, but it is _______ too difficult.”
I was about to go to bed _____ one of my old classmates made a call to me.
Mr King, _____ legs were badly hurt, was quickly taken to hospital.
He was generally _________ to be the finest poet in the land.
Students are encouraged to _________ the design competition for robots at the university.
The plan has to be _______ to meet the real situation.