In ____, he began to learn Russian, when he was in ______.
Mary, _____ here — everybody else, stay where you are.
_____ matters most in learning English is enough practice.
— Are you _____with doing a lot of homework everyday? —Sometimes I am. But as a student , we have to do so at present.
He wrote a lot of novels, none of _____ was translated into a foreign languages.
An offer of a reward has caused many students in our school _____ actively in the competition.