----What about playing football this afternoon, Sam?-----I would rather _____ at home than _____football, it’s too hot outside.
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.
My mother _________ a history teacher.