Complete the sentence with the correct modal verb. Make sure to put the verb in the correct tense (PAST or PRESENT).
You ... tip a taxi driver, it’s optional.

К сожалению, у нас пока нет статистики ответов на данный вопрос, но мы работаем над этим.

Complete the sentence with the correct modal verb. Make sure to put the verb in the correct tense (PAST or PRESENT).You ... tip a taxi driver, it’s optional.