—I wonder ______ without water.
—For about a week.
| A．how long can a man live | B．how long a man can live |
| C．when can a man live | D．when a man can live |
—I wonder ______ without water.
—For about a week.
| A．how long can a man live | B．how long a man can live |
| C．when can a man live | D．when a man can live |
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