给下面的有关数据填上合适的单位:(1)教室的门高约为20 (2)王一同学的步行速度约为1.0 (3)人心跳70次的时间约为1
Most of the villagers took part in the Dragon Boat races 9:00a.m. the morning of June 7.( )
A.at. inB.on.onC.on ,inD.at ,on
﹣You've dropped "s" in the word" necessary".
﹣Oh, letter"s"is doubled.( )
A.a; aB.a; theC.an; theD.the; the
After discussing the project several times, they reached an agreement (协议) finally.
G speaking, different countries have different table manners.
Mary is a from class today because she is in hospital.