While he was investigating ways to improve the telescope Newton made _______discovery which completely changed ____ man’s understanding of color.
Having a trip abroad is certainly good for the old couple, but it remains________whether they will enjoy it.
A new cinema________here. They hope to finish it next month.
Hundreds of jobs________if the factory closes.
I need one more stamp before my collection________.
—Do you like the material?—Yes, it________very soft.