— What’s wrong with you, Eric? You look tired.
— I to prepare for the final exam last night.
| A．picked up | B．looked up |
| C．stayed up | D．put up |
— What’s wrong with you, Eric? You look tired.
— I to prepare for the final exam last night.
| A．picked up | B．looked up |
| C．stayed up | D．put up |
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