21、---- It is the second time that I _________ to Shanghai.
---- What great changes! It’s ten years since I _______ it last time.
A．have been; left B．had been; left C．am; had left D．come; had left
科目：高中英語 來源： 題型：
---- It is the second time that I _________ to Shanghai.
----- What great changes! It’s ten years since I _______ there last time.
A. have been; went B. had been; went C. am; had been D. come; had been
科目：高中英語 來源： 題型：
---- It is the second time that I _________ to Shanghai.
---- What great changes! It’s ten years since I _______ it last time.
A．have been; left B．had been; left C．am; had left D．come; had left
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