题文
This math problem is too difficult. Can you show me________, George?
| A．what to work out | B．to work i t out |
| C．how to work it out | D．how to work out it |
This math problem is too difficult. Can you show me________, George?
| A．what to work out | B．to work it out |
| C．how to work it out | D．how to work out it |
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