Вставить глагол to be There ... a telegram on the table. ... there any telegrams from Moscow? ... there... a flight for Moscow tomorrow? There... much snow last winter. ... there any lectures yesterday?

There is/was a telegram on the table. Are/Were there any telegrams from Moscow? - возможны оба варианта, выбираем в зависимости от контекста.
Will there be a flight for Moscow tomorrow? There was much snow last winter. Were there any lectures yesterday?