The president promised to keep all the board members __________ of how the negotiations were going on. A) informed B) inform C) be informed D) informingkeep后面不是省略to的嗎？怎么不選C？再請問這里的how 怎么用？

熱心網(wǎng)友

選A。這里是keep的復合結構，informed of是賓補。how引起的是of的賓語從句，從句內(nèi)作going on的狀語。主席許諾說要讓所有的部委成員知道談判的進展情況。