单项选择题
A．Because her mother blamed her for not playing piano. B．Because she was not allowed to play piano. C．Because she had to play piano instead of going out to play. D．Because she was forced to go out.
A．A salesman recommended it. B．He saw an advertisement. C．His friend has one. D．He bought one before.
A．She bought one pair of shoes at last. B．She bought three pairs of shoes at last. C．She didn’t buy any pair of shoes at last. D．She bought two pairs of shoes at last.