单项选择题
A．老人读完女儿的信后失望至极，竟用颤抖的手指把它撕得粉碎。 B．读完女儿的信后，老人很失望，然后用颤抖的手指把信撕得粉碎。 C．老人读完女儿的信后很生气，竟用颤抖的手指把信扔到地上。 D．读完女儿的信后，老人很伤心，所以用颤抖的手指把它撕碎了。
A．there is no way to get children to help at home B．it is very difficult to make children responsible for housework C．the more encouragement and praise, the more responsible and helpful children will become D．children can be forced to help with housework
A．learn from himself, for he has a good way of teacher B．take pride in being a teacher C．praise instead of scolding D．do as a teacher does