This flashcard tests the correct gerund usage 'rubbing' after 'by'.
Ovaj karton testira ispravnu upotrebu gerunda 'rubbing' nakon izraza 'by'.
| Question | Grasshoppers can produce sounds by … their hind legs against heir wings. |
|---|---|
| Title | 1900 |
| QType (0=kprim,1=mc,2=sc) | 2 |
| Q_1 | rub |
| Q_2 | rubbed |
| Q_3 | rubbing |
| Answers | 0 0 1 |
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