.—Hello! May I speak to Mr. Hu? —Sorry, he isn’t in. _________
The ________ on his face told me that he was angry.
---Hannah loves his new dog, doesn’t he ?--- Yes, he ____ it out for a walk every day.
Progress ____so far very good and we are sure that the work will be finished on time.
My American friend Sam is interested in Yangzhou very much. He wonders _______.
It is said that the gravity on Mars is only about __________ of the gravity on earth.