---Sally is ill. Do you know what’s the matter with her? ---Poor girl. Her illness is the_________ of eating unhealthy food.
There50 students in our class.
I havenew basketball,,Let’s playfootball.
Welcome the Americansour city.
—Harbin is really a beautiful city and there’re many places of interest. —So it is. Why not stay here for ____ two days?
China is an ____ country.