摘要： The policeman is still not sure the young man killed himself or was killed. A. if B. that C. whether D. weather
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The policeman is still not sure ______ the young man killed himself or was killed.
| A．if | B．that | C．whether | D．weather |
The policeman is still not sure ______ the young man killed himself or was killed.
A．if B．that C．whether D．weather
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The policeman is still not sure ______ the young man killed himself or was killed.
| A．if | B．that | C．whether | D．weather |