accidentevent afffair incident的区别
1.A journalist will soon be sent to cover the ______
2. Do you have any idea when the traffic ______happened?
3.premier wen jiabao is very busy because hehas a lot of international andnational ______ to dealwith.
4 The lugouqiao _____ occurred on july 7 1937
将词按适当形式填空最好能有分析