对某事物了解得一点不差, 对某事物记忆得一点不差, 准备好某事物随时可用

have a wonderful time

have mercy on

have a quarrel with sb about sth

have one's own way

have/give access to

blues

date somebody;have a date with somebody;go on a date with somebody

If you have no hand you can't make a fist.