Some retired people have nothing to do. They often get together and ____for hours talking about their past experiences.
People laugh at jokes, but seldom ________ about how they work.
---Why does Jane always ask you for help? ---- There is no one else ________, is there?
It’s reported that many a house ________ by the heavy snow so far in New York.
No one really knows for sure ________ makes a person become right-handed rather than left-handed.
Now there is just one point ________ I wish you to make quite clear.