We should help our parents do some housework.The main structure of the sentence is _______.
| A．S+V | B．S+V+DO+OC | C．S+V+P | D．S+V+IO+DO |
We should help our parents do some housework.The main structure of the sentence is _______.
| A．S+V | B．S+V+DO+OC | C．S+V+P | D．S+V+IO+DO |
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