Nanjing is about 1,100 km away from Beijing and it’s nearly a ________ ride by high-speed train.
| A．four hours | B．four-hour’s |
| C．four-hour | D．four-hours |
Nanjing is about 1,100 km away from Beijing and it’s nearly a ________ ride by high-speed train.
| A．four hours | B．four-hour’s |
| C．four-hour | D．four-hours |
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