Every year, _______ visitors come to Taixing to enjoy the delicious food, such as Huangqiao cakes, Xuanbao dumplings and so on.
–What does she usually use the computer _________?– She usually uses it to chat with her friends.
The factory _________ since two years ago.
–Where is your father?– He _________ Australia and he_________ Sydney for two weeks.
– How long has Robot _________ ?– Since2004.
Great changes _________ in Nanjing since the1990s.