It is impossible for ______ little children to do ______ much work within 20 minutes.
| A．so, so | B．so, such |
| C．such, so | D．such , such |
It is impossible for ______ little children to do ______ much work within 20 minutes.
| A．so, so | B．so, such |
| C．such, so | D．such , such |
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