单项选择题
A．his sister was taking lessons B．he had to help his mother C．he was too small D．he had to wait for his sister to finish practising
A．a purpose B．a means C．fashionable D．the first system
A．records will be broken B．skies will be partly cloudy on Sunday and Monday C．there will be no rain in the forecasted period D．temperatures will be lower than normal for the time of year