—I called you at 4∶00 yesterday afternoon. But there was no answer. Wherewere you?—I in the supermarket.A、am shoppingB、do shoppingC、was shopping
Students spend too much time_______computer games.
Mr. Han died_______illness last month.
Trees used to be______for cooking by the hunters in the 1970s.
Most of the children went to sleep.Why are you still________?
—Tony is six and he is_______his sister Jane.How old is Jane?—Three.