he must be a_____boy.he made too many mistakes in his homework.(care) would you please keep_____...
问题描述：
he must be a_____boy.he made too many mistakes in his homework.(care) would you please keep_____...
he must be a_____boy.he made too many mistakes in his homework.(care)
would you please keep_____in the reading room.(silence )
they____solving the problem at last.(success)
答
careless 马虎的 -less 附在动词或名词之后的形容词词尾)表示"无","没有"
silent 安静的
succeed in doing sth,在这里要用 一般过去式 succeeded in （in 是不能省略的）
note:careful,仔细的,小心的