1

應該

yīnggāi

ought to; should; must

2

早就

zǎojiù

already at an earlier time

3

放學

fàngxué

to dismiss students at the end of the school day

=4

了

le

(completed action marker) (modal particle indicating change of state, situation now) (modal particle intensifying preceding clause)

=4

了

liǎo

to finish (used with 得 dé or 不 bù after a verb to express (im)possibility, as in 忘不了 wàngbuliǎo "cannot forget") (literary) (usually followed by a negative such as 无 wú or 不 bù) completely (not); entirely (not); (not) in the least to understand clearly (variant of 了 liǎo)

=4

了

liǎo

(of eyes) bright clear-sighted to understand clearly

=4

了

liào

unofficial variant of 瞭 liào

=5

啊

ā

interjection of surprise Ah! Oh!

=5

啊

á

interjection expressing doubt or requiring answer Eh? what?

=5

啊

ǎ

interjection of surprise or doubt Eh? My! what's up?

=5

啊

à

interjection or grunt of agreement uhm Ah, OK expression of recognition Oh, it's you!

=5

啊

a

modal particle ending sentence, showing affirmation, approval, or consent