_____ is known to all is that effective measures should be taken to deal with the problem of the over-exploiting of our resources.
——Good evening. I ____ to see Miss Jessic. ——Oh! Good evening. I’m sorry, but she is not in.
As we have much time left, let’s discuss the matter ____ tea and cake.
We should know that we can only reach the top if we are ready to ____ and learn from failure.
——How come a simple meal like this costs so much? ——We have ____ in your bill the cost of the cup you broke just now.
——This wall of air is an effective answer to the problem and it ____ work. ——But it is a question to put such a wall of air around the statue.