问题补充：
Thousands of Poles gathered in front of the Presidential Palace in Warsaw on Saturday to lay flowers and light candles Polish President Lech Saczynski and some of Polands key civilian and military leaders in a plane crash in western Russia.
A. in honor of; killed
B. in memory of ;killing
C. in praise of ; to kill
D. in spite of; kill
答案：
(答案→)A. in honor of; killed
B. in memory of ;killing
C. in praise of ; to kill
D. in spite of; kill
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