Grammar exercise 1 of 4 语法练习1
Use 去、走、离开、离、开 as “The difference between 去 (qù), 走 (zǒu) and 离开 (líkāi) in Chinese grammar” explains it, through 14 items over 8 of its example sentences: fill the gap where the word was taken out, and put the words of each sentence back in order.
The difference between 去 (qù), 走 (zǒu) and 离开 (líkāi) in Chinese grammar
14 items. Each one you miss comes back later in the same sitting.