You should note that before putting a word in a group, students need to click and listen. If a word is in the correct group but in the wrong line, they didn't listen to the audio.
A very good idea for a worksheet, thank you so much for sharing it.
If you want to make it even better, to avoid one word in the wrong place causing the rest of the words in that square to be marked as wrong, you could use the same number for all the words that go in the same square; that way the order is not important.
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