_____is it?—It’s 20 yuan.[ ]

Miss Li has taught ____ English for about 3 years.—You are lucky. ____ is a very good teacher.

Who likes playing _________ volleyball? — My sister _______.

I never doubt ________ the places of interest is worth ________.

______ came that Prime Minister David Cameron（卡梅伦首相） blamed the worst riots（骚乱）in Britain the other day.