It is _______that I can’t put it down.
The examination was not very difficult, but it was_____________________ long.
_______ has been a topic of continual geological research.
I am sorry I have no time at present to____________________ detail of our plan.
The phrase "keeps sellers on their toes" in the passage mostly means "______".
She asked me______I was looking at.
The packages___________________ so that it would be easier to carry them.
As a millionaire who liked to show off her wealth, Mrs. Smith paid______________________________________________ we asked.
In spite of her abilities, Laura has been_____________________ overlooked for promotion.
He_______________us but he was short of money at the time.
There has been a great increase in retail sales,_____________________ ?