The word which complete the sentence is caminaba.
Yo caminaba por el supermercado cuando me llamó mi madre.
Answer:
The world of the future depends on us. In your opinion: what are some problems that we have to solve to improve living conditions on our planet? Can you propose solutions to these problems? What kinds of work will be necessary in the future? Write an eight sentence paragraph, using: the future of verbs or ir + a + infinitive where appropriate and the vocabulary you have studied that refers to work, the environment and / or technology.
Explanation:
Hey there! I need more details in order to help you. :)