Ⅰ. 根据句意及汉语提示写出单词
1. They sat at their desks, (聊天) from 3 pm to 5 pm.
2. When it is (便利) for you, you will help us with our work.
3. The little boy’s left leg got (卡住) in the fence.
4. Most students are (熟知) with this kind of machine.
5. The professor was asked an (令人难堪的) question at the meeting.
6. When she cares about dressing, she is (讲究的) about her clothes.
7. It has been (确认) that the president will visit our school next week.