他坐在他的座位上是He sits at his seat还是in his seat?

he looked at his grade and slumped in his seat 这是不是过去完成式 Jess really felt very happy. When he arrived at his seat in He sat in his ___（usually）seat at the back. He stood in the bus,finging his seat 他做他的作业是He does his homework还是He do his homework He ____his eyes from his desk and then____from his seat. 英语翻译可以帮我找吗开头是He took his aisle seat-32-in the 707 for Rome.T  Sam really felt very happy.When he arrived at his seat Just as I passed,he suddenly went rigid in his seat. He gave his seat to a woman with a baby(对画线部分提问)(画线的是a woman Exit Row Seat是指飞机上的那种座位呢?万分火急! He ofen gives the old his seat的同译句