______ is a variety of language (usually a native language of a country) which serves as a medium of communication among groups of people with diverse linguistic background.

单项选择题______ is the largest city in Canad

单项选择题Wellington is the capital of ______.

单项选择题Carrie Meeber appears in ______.

单项选择题D. H, Lawrence employs ______ in his masterpiece The Sons and Lovers.

单项选择题______ was invented by Dr. Zamenhof.