单项选择题
A．are left-handed B．are right-handed C．can use both hands equally well D．never use left hands
A．might do it much harm B．could do it much good C．would give the butcher some meat D．was worth many pounds
A．when he found the words on the paper were not very clear B．because he happened to have sold out all the meat in his shop C．before he felt sure that the words were really written by Mrs. Smith D．until he was paid enough by Mrs. Smith