题目

When should Tony return the money to Emma?A. In July. B. In August. C. In September. 答案：【答案】C【解析】W: Tony, it is July now. When will you return my money?M: Sorry, Emma. An emergency came up. Would you please give me another two months? W: OK. September is the deadline.大于是90°的角叫钝角．　 　（判断对错）