I think ______ necessary ______ to take more exercise.

Mary made coffee ________ her guests were finishing their meal.[ ]

Is it in this room in _____ the great writer once lived ____ he finished his last works?

下列各句句式，归类正确的一项是（ ）①复驾言兮焉求 ②遂见用于小邑 ③胡为乎遑遑欲何之 ④背负青天，而莫之夭阏者 ⑤童子何知，躬逢胜饯 ⑥翱翔蓬蒿之间 ⑦而刘夙婴疾病 ⑧覆杯水于坳堂之上 ⑨则告诉不许 ⑩农人告余以春及

Either you or one of your students___________ to attend the meeting that is duetomorrow.[ ]