it's a quarter to nine,语法上to能否改成past?

it's a quarter to nine,语法上to能否改成past? it's quarter to nine It's (a) quarter past\after\to three. It’s a half past quarter-to-three 根据答句写问句:It is a quarter to nine It's (a quarter to one).a.fifteen past twelve b.one fifteen i to,at,bed,past,a,go,quarter,nine怎么造句 It's a quarter to one是几点? It's a quarter to five是什么意思? It's a quarter past seven now a quarter to eight half past six a quarter It`s half past nine.It`s time to _____(go)to bed理由