| Task | I can't remember all these __________ (a formula). |
|---|---|
| Answer | 3 |
| a | formulaes |
| b | a formula |
| c | formulae |
| d | formulais |
| comment | There are many nouns which have Greek or Latin origin. As a rule, they keep own endings: A FORMULA - TWO FORMULAE. 'Formulas' also can be used. |
| topic | nouns |
| level | 1 |
Tags: 457
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