题文
I had been working on math for the whole afternoon and the numbers __________ before my eyes.
| A．swim | B．swum |
| C．swam | D．had swum |
推荐试卷
I had been working on math for the whole afternoon and the numbers __________ before my eyes.
| A．swim | B．swum |
| C．swam | D．had swum |
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