“Don’t worry about me,” she ________ her sister.
Many clothing manufacturers now substitute artificial silk _____ natural silk to cut down costs of production.
--- Where are you, Nancy? --- Here in the sitting room, _______ to Professor Smith.
Canada is a country ______ many different nationalities as well as one with foreign immigrants ______ the majority of its population.
--- Mum, I’ve at last passed the final exam.--- ________
What _______ great fun it is to play ______ game of basketball after a whole day of study!