【单选题】
What role does a teacher play in the following activity? When a student has made a sentence with borrow, “I borrowed a paper to write a letter”, the teacher says, “Well, we don’t say a paper, we say a piece of paper.”
【单选题】
In that country, guests usually feel that they are not highly ______ if the invitation to a dinner party is given only three or four days before the party date.