单项选择题
Evening dress necessary （）
A. You must wear your evening dress. B. You don't have to wear evening dress, but you can if you like. C. Evening dress will make you look nice.
单项选择题 Mayfield College Italian for Business 5×3-hour lessons twice weekly beginning Tuesday 28 September Each lesson will last（）
单项选择题 Thank you for your enquiry of 30 October.The company received a letter asking for（）
