—Maybe he was busy at that moment.
A:accept
B:answer
C:notice
尧舜禹时期采用“____ ”的方法推举部落联盟首领。
只给你天平、刻度尺、一盒大头针、一本书,你不能做的实验是()
马克思说:“希腊的内部极盛时期是伯利克里时代,外部极盛时期是亚历山大时代。”伯利克里时代希腊“内部极盛”表现在( )
— He thinks that girls are smarter than boys when it comes to learning English.
— But two years ago he thought_______.