Grammar exercise 3 of 3 语法练习3
Use 吗、呢 as “吗 (ma) and 呢 (ne): the two Chinese question particles” explains it, through 11 items over 6 of its example sentences: fill the gap where the word was taken out, and put the words of each sentence back in order.
吗 (ma) and 呢 (ne): the two Chinese question particles
11 items. Each one you miss comes back later in the same sitting.