I use example from documentation:

bot.command('inline', (ctx) => {
    return ctx.reply('<b>Coke</b> or <i>Pepsi?</i>', {
        parse_mode: 'HTML',
        ...Markup.inlineKeyboard([
            Markup.button.callback('Coke', 'Coke'),
            Markup.button.callback('Pepsi', 'Pepsi')
        ])
    })
});

bot.action(/.+/, (ctx) => {
    return ctx.answerCbQuery(`Oh, ${ctx.match[0]}! Great choice`)
});

On /inline command, i see the message "Coke or Pepsi?" with two buttons "Coke" and "Pepsi" but if I click on one of them, nothing is happens.