① 高中英語
It is 3 years since he worked here=he___here. left
worked 這里是延續性動詞，since後用延續動詞，表示不在從事這個動作了。短暫性動詞，照譯
It is 3 years since he smoked. 他有3年不吸煙了。
It is 3 years since he left the city.他離開這個城市有3年了
① 高中英語
It is 3 years since he worked here=he___here. left
worked 這里是延續性動詞，since後用延續動詞，表示不在從事這個動作了。短暫性動詞，照譯
It is 3 years since he smoked. 他有3年不吸煙了。
It is 3 years since he left the city.他離開這個城市有3年了