摘要：23． the lecturer more clearly, I arrived early and chose a front seat． A．Hear B．Hearing C．Heard D．To hear
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_________ the lecturer more clearly, I arrived early and chose a front seat.
| A．Hear | B．Hearing | C．Heard | D．To hear |
_____ the lecturer more clearly, I arrived early and chose a front seat.
| A．Hear | B．To hear | C．Heard | D．Hearing |