—The classroom is ____ clean ____ it was yesterday.— Sorry, I forget to clean it.
The apples look ________ and sell ______.
Here are some books for _____ sister and _____.
They arrived _____ Shanghai _______ the evening of April 10th.
_____ hat is Mrs Li's. It's _____ old one.
---Could you tell me _______? ---Of course, last night.