单项选择题
He raised his eyebrows and stuck his head forward and （）it in a single nod, a gesture boys used then for O. K. when they were pleased.
A．shrugged B．tugged C．jerked D．twisted
单项选择题 The ball （）two or three times before rolling down the slope.
单项选择题 This new laser printer is （）with all leading software.
单项选择题 The results are hardly （）he cannot believe they are accurate.
