题文
–How often do I need to feed the dog?
–It food every day, or it will be hungry.
| A．gives | B．must give |
| C．must be give | D．must be given |
–How often do I need to feed the dog?
–It food every day, or it will be hungry.
| A．gives | B．must give |
| C．must be give | D．must be given |
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