We _______ pay to get into the concert. It's free.
--- I can’t believe you finished the work so quickly.--- That’s because several classmates helped me . No wonder they say _______ .
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 _______.