单项选择题
A．It’s a new way of applying chemical fertilizer. B．It’s an improved method of harvesting crops. C．It’s a creative technique for saving labor. D．It’s a fainting process limiting the use of ploughs.
A．He picked up some apples in his yard. B．He cut some branches off the apple tree. C．He quarreled with his neighbor over the fence. D．He cleaned up all the garbage in the woman’s yard.
A．Dr. Smith’s waiting room isn’t tidy. B．Dr. Smith enjoys reading magazines. C．Dr. Smith has left a good impression on her. D．Dr. Smith may not be a good choice.