—I can hardly believe my eyes．Is that you，Lucy？
—Yes．It has been almost 20 years________we were together．
| A．since |
| B．before |
| C．after |
| D．until |
—I can hardly believe my eyes．Is that you，Lucy？
—Yes．It has been almost 20 years________we were together．
| A．since |
| B．before |
| C．after |
| D．until |
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