单项选择题
A. Because you need rest. B. Because audience may fall asleep. C. Because you may be tired for talking too long. D. Because it can make audience remember what you said.
A. decreasing the pulse rate B. a loss of carbon dioxide C. causing breathing problems D. causing asthma
A．everything is wrong B．Do you agree C．let’s total the score D．let’s do it E．we can do it F．Here is the answer sheet G．Here is your score H．the percentage is incorrect