Attention, coffee lovers! We have for you, the best coffee machine _____ invented

— Do you have any news about Bob?— Yeah. We ______ each other quite a lot recently.[ ]

14．How can you cross the river _________ by swimming

This Englishman is good at writing, reading and ________ is kind to others[ ]

7．John’s ability to learn from observations and experience_______greatly to his success in public life