题文
Gun control is a subject ____ Americans have argued for a long time.
| A．of which |
| B．with which |
| C．about which |
| D．into which |
推荐试卷
Gun control is a subject ____ Americans have argued for a long time.
| A．of which |
| B．with which |
| C．about which |
| D．into which |
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