Sarah ______ for Beijing tomorrow, so she can’t go to have a picnic with us.
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.