—Do you still remember when we went to Nanjing?—I can't remember now but ________ sometime last summer?
Is this the reason ___________ at the meeting for his carelessness in his work?
.Whenever we are in ________ , we must never lose ______ , but try to think of the way out.
The farm ______ we see today is no longer the one ______ it was ten years ago.
______ of the land in that district _______ covered with trees and grass.
_______ meet Mr Wang, chairman of the trade union, he waited at the gate of the factory.