是on the beach还是in the beach

是on the beach还是in the beach 是in the afternoon of April 30th 还是 on the afternoon of April 30th He often plays beach ball on the beach in summer.划plays beach ball提问 在具体某一天的早上用什么介词啊,是in还是on?（是写in还是on）the morning of April 18th. I like to lie on the beach还是 I like lying on the beach 是on May 15th还是in May 15th啊o 初中英语介词（ ）weekends 是in还是at（ ）the evening of August 8th 2008,是in 还是on还是at play on the beach 英语方面的.速度回答on the morning of 3th May还是in the morning of 3th May 十月一日用英文是on th first on October还是on the first of October? it is () to lie on the beach in summer They walk arm in arm on the beach. 是On the afternoon of March the 14th还是I n the afternoon of March the 14th? 英语翻译我想去海里游泳,在海滩上放风筝.“I want to go swimming in sea,fly kites in beach.”这样写对吗还是in the sea,on the beach?什么时候用the,什么时候不用 Tom's father came back()the afternoon of March 12th.用in还是on? I was born _ the moring of May 7th 用on 还是 in ----the afternoon of March 8th填什么介词In还是On May 5th 前面是on 还是in 还是at?为什么?、、..