What a pity! The car ran out sight before I could _______ its number.
The old couple will never _____ the loss of their son.
Sherry is in good shape physically _____ she doesn’t do enough sports.
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.