The plan connected the Hudson River with Lake Erie by a canal was first proposed in the late eighteenth century.
_______ has been a topic of continual geological research.
She asked me______I was looking at.
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 "______".
The examination was not very difficult, but it was_____________________ long.
______ one of the most beautiful forms of performance art, ballet is a combination of dance and mime performed to music.
In spite of her abilities, Laura has been_____________________ overlooked for promotion.
As a millionaire who liked to show off her wealth, Mrs. Smith paid______________________________________________ we asked.
There has been a great increase in retail sales,_____________________ ?
Stephanie: "Oh, no! I left my book at home. Can I share yours?" Scott: "______ "