7:40的英文怎么寫

　　I used to get up at about twenty past seven.

　　我通常大概7點20起床。

　　We get to school at half past seven day.

　　我們每天七點半到校。

　　Promptly at a quarter past seven, we left the hotel.

　　我們于7點一刻準時離開了賓館。

　　The junk market has been unsettled for the past seven months.

　　過去7個月中廢舊貨市場一直起伏不定。

　　He signed on at half past seven.

　　他于七點半簽到上班。