Grammar exercises: Video lesson: 了 for a completed action, and 了 read liǎo (le) in Mandarin Chinese grammar 语法：了练习

The example sentences of the article, a few to an exercise, in the order the article shows them. Each exercise takes the point's word out of a sentence for you to fill back in, then gives you the sentence's words to put in order, and an item you miss comes back later in the same sitting.

1 grammar exercise over 12 items.