Конкурс по английскому языку «Grammar with Humour»

Вопрос № 1. Вставьте пропущенные слова.
– Where did you learn to chop … trees?
– In the Sahara desert.
– But there are … trees there.
– I know, but there used to …!

Back, some, exist

Up, not, plant

Off, any, grow

Down, no, be