–WhatdoyouthinkofthereportontheUFOs?       --Great!Many...

问题详情：

–What do you think of the report on the UFOs?

        --Great! Many students were interested in it and they kept on standing ______ the end of the meeting.

       A. until           B. in              C. at              D. by

【回答】

A

知识点：介词和介词短语

题型：选择题