You speak Chinese very well._______ have you learnt , Amy—For two years.

You are ________ to shut off your mobile phone when having a meeting.

It is usefulbook.—Yes, it tells us how to play football.

我的衣服是小号，爸爸的衣服是大号，妈妈的衣服是中号，依次用英语表示是___.

Where will 2014 Youth Olympic Games __________ — In Nanjing.