上午用英文怎麼表達？簡寫

Polling has been heavy since 8 a.m.

從早上8點以來投票很踊躍。

I book a wake-up call for 4:45 a.m.

我預訂了凌晨4點45分的叫醒電話。

I rushed to get the 7:00 a.m. train.

我急急忙忙去趕早上7點的火車。