单项选择题
It is a good time to catch up on（）readings and other assignments.
A．a former B．previous C．back D．before
单项选择题 -I want to see Mr.Smith. We have an appointment. -Im sorry, but he is not（）at the moment, for the meeting hasnt ended．
单项选择题 It's（）much more than I paid for it.
单项选择题 The mouth is（）intelligent than the ears, for they are both controlled by the brain.
