1. Helen and Peter buy cabbage and apples. a. in the "Sweet shop" b. in the "White shop" c. in the "Green shop"

Давай разберем по порядку, что покупали Helen и Peter.

Согласно тексту: I think we can buy some cabbage, carrots, tomatoes and apples in the "Green shop" for mum. Значит, Helen и Peter покупают капусту и яблоки в "Green shop".

Ответ: c. in the "Green shop"