Grammar exercises: The difference between 想 (xiǎng), 要 (yào) and 想要 (xiǎngyào) 语法:想、要 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.
4 grammar exercises over 44 items.