11:15 6:15 11:40 17:20 18:00 21:00用英语怎么说

问题描述:

11:15 6:15 11:40 17:20 18:00 21:00用英语怎么说

a quater past eleven
a quater past six
20 to 12
20 past five P.M.
six P.M.
nine o'clock P.M.