题目内容
The plane of the Polish president was about to land ______ it snagged(挂) treetops and crashed, ______ the president and 96 others on board.
| A.while, killed | B.when, killing |
| C.and, and killed | D.when, to kill |
B
略
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题目内容
| A.while, killed | B.when, killing |
| C.and, and killed | D.when, to kill |