________, the boys were shouting and singing.
A:Happy and excited
B:Happily and excitedly
C:Happily and excited
D:Happy and excitedly
给下面的字选择正确的读音。
de dí
的____确
①工业革命发展,资本主义经济增长迅速
②资本主义社会弊端暴露,工人运动高涨
③马克思、恩格斯进行深入的理论研究
④普法战争激化了法国国内的阶级矛盾