Example sentences of "and once a [noun sg] has " in BNC.
Next page| No | Sentence |
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| 1 | But they could be seriously jeopardised by the Zambian and Zimbabwean proposal because there is no adequate system for marking skins , and once a pelt has reached the fur markets of Frankfurt , London or New York there is no realistic way of knowing where it came from . |
| 2 | And once a choice has been made , this , in itself , imposes constraints . |
| 3 | If danger threatens powerful muscles can snap the valves tightly shut , and once a bivalve has closed itself in this way it can be very difficult to force it open — it has ‘ clammed ’ up . |
| 4 | And once a flaw has appeared , it tends to be copied as subsequent layers of crystal encrust themselves on top of it . |
| 5 | and once a repair has been carried out , the wall will dry out . |
| 6 | The tube can be lowered into the tank and once a syphon has been made , the tube picks up gravel and agitates it and once you apply your thumb to the end of the hose , the gravel falls back to the bottom , leaving you with clean substrate and a bucketful of dirty water . |