题文
We went to Hainan Island on May Day and had great fun ________ in the sea.
| A．surf | B．surfing |
| C．surfs | D．to surf |
We went to Hainan Island on May Day and had great fun ________ in the sea.
| A．surf | B．surfing |
| C．surfs | D．to surf |
试题篮
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