—How long________the film________?
—For about ten minutes．
| A．did；begin |
| B．has；begun |
| C．has；been on |
| D．has；been |
—How long________the film________?
—For about ten minutes．
| A．did；begin |
| B．has；begun |
| C．has；been on |
| D．has；been |
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