题目内容
The boy did his homework with the help of his father in the past. But now he can do it alone.
| A．for himself | B．on himself | C．by himself | D．with himself |
C
解析
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题目内容
The boy did his homework with the help of his father in the past. But now he can do it alone.
| A．for himself | B．on himself | C．by himself | D．with himself |
C
解析
