| Task | My friends left 3 hours ago and they should have arrived ___ now. |
|---|---|
| Answer | 4 |
| a | to |
| b | for |
| c | at |
| d | by |
| comment | It is correct to say 'by now' speaking about a deadline, time-limit. |
| topic | prepositions |
| level | 2 |
Tags: 955
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