Grammar exercise 1 of 2 语法练习1
Use 是…的、了、是、的 as “The 是…的 (shì…de) construction vs 了 (le) in Chinese grammar” explains it, through 16 items over 7 of its example sentences: fill the gap where the word was taken out, and put the words of each sentence back in order.
The 是…的 (shì…de) construction vs 了 (le) in Chinese grammar
16 items. Each one you miss comes back later in the same sitting.