英语 适当形式：The case of a bomb explosion___(investigated) now is in the charge of Inspector Lee.适当形式填空：The case of a bomb explosion____________(investigated) now is in the charge of Inspector Lee.答案是being investigated.表示不明白这是什么语法现象?伴随状语吗?可不可以举出几个例句..还有,填investigated行不行?为什么我这里显示有一个回答但是看不见答案啊=

英语 适当形式：The case of a bomb explosion___(investigated) now is in the charge of Inspector Lee.
适当形式填空：The case of a bomb explosion____________(investigated) now is in the charge of Inspector Lee.答案是being investigated.表示不明白这是什么语法现象?伴随状语吗?可不可以举出几个例句..还有,填investigated行不行?
为什么我这里显示有一个回答但是看不见答案啊=