American women usually consider their best friend as someone ________ they can talk frequently.
When________there, the postman found the door locked and then stopped ______the letter under it.
This agreement will be signed by the managers_________.
“All of them are not fond of the film” means “_______of them are fond of the film”.
More than one student_______absent from Mr.Smith’s class.
A sheep_______on this kind of special grass usually grows much faster than_______on ordinary (普通的).