It's the second time that I __________ in Beijing. What great changes! It's years since I __________ here last time.
| A．went; had left | B．have been; left |
| C．had been; left | D．have been; had left |
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It's the second time that I __________ in Beijing. What great changes! It's years since I __________ here last time.
| A．went; had left | B．have been; left |
| C．had been; left | D．have been; had left |
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