单项选择题

Questions 11 to 18 are based on the conversation you have just heard.

A．Exchange some currency.
B．Submit a letter of reference recently.
C．Not to submit the old letter of reference.
D．Make an appointment with the professor.
<上一题 目录 下一题>
热门 试题

填空题
Different from large organic farms, small organic farms were mainly engaged in ______.
填空题
______ are applied in conventional farming for weed control.
相关试题