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．since the last century B．for a very long time C．since a few hundred years ago D．since a few years ago
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