Halley’s Comet had its first documented sighting in 240 B.C, in China and____ it has been seen from the Earth 29 times.
The packages___________________ so that it would be easier to carry them.
The boat was sailing north when a terrible storm_____________ .
The examination was not very difficult, but it was_____________________ long.
Only one of our gifted students______to participate in the final competition.
Tom: "___________________ " Mike: "I won't say no!"
As a millionaire who liked to show off her wealth, Mrs. Smith paid______________________________________________ we asked.
Supporters of free-market globalization point out that_____________________ .
We all agree that she is____________________ student in our class.
The phrase "keeps sellers on their toes" in the passage mostly means "______".
It is stated in the passage that____________________ .