题文
You can never imagine what great difficulty I had __________ the poor boy who was trapped in the earthquake.
| A．helping |
| B．to help |
| C．help |
| D．helped |
推荐试卷
You can never imagine what great difficulty I had __________ the poor boy who was trapped in the earthquake.
| A．helping |
| B．to help |
| C．help |
| D．helped |
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