---I think English is ____unimportant subject.---I don’t think so. It is ____useful tool when we talk with foreigners.
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).