before

过了好一会儿我才意识到他是在开玩笑。

It took a few moments ___before I realized that he was joking.

她练习了几个星期才能完美地演奏那首歌。

She practiced for weeks ___before she could play the song perfectly.

老师站在全班面前讲课。

The teacher stood ___before the class to give a lesson.

老房子前面有一个美丽的花园。

There is a beautiful garden ___before the old house.

在英语字母表中，K 在 L 前面。

The letter K comes ___before L in the English alphabet.

在日历中，一月在二月前面。

January comes ___before February in the calendar.