| Task | The american F-22 Raptor air superiority fighter is one of the world's most powerful _______ nowadays. |
|---|---|
| Answer | 1 |
| a | aircraft |
| b | aircraftes |
| c | aircraft's |
| d | aircrafts |
| comment | There are some nouns which have the same form in the singular and in the plural: AIRCRAFT - AIRCRAFT |
| topic | nouns |
| level | 2 |
Tags: 937
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