-Though radio and television are ____ popular in the world today, I think the TV is ____ useful.--Of course, on TV we can see and hear what is going on home and abroad.
Chinese students have weeks in the summertime than American students
He always tells funny things to me and always ___________.
My best friend Jack looks happy, and he always ________ a smile ________ his face.
—Mum, can I have something __________? — Sorry. There is __________ in the fridge.
China is larger than ________ country in Africa(非洲).