| Task | Albert Einstein _____________ (to publish) a paper on the general theory of relativity in 1916. |
|---|---|
| Answer | 4 |
| a | was publishing |
| b | had published |
| c | has published |
| d | published |
| comment | We use the Past Simple Tense when we talk about actions which happened at a certain time in the past. Here: in 1916. |
| topic | past tenses |
| level | 1 |
Tags: 104
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