Grammar exercises: The difference between 终于 (zhōngyú) and 最后 (zuìhòu) in Mandarin Chinese: 'finally' vs 'the last' 语法:终、于、最、后 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 7 items.