题目内容
用介词或副词填空
He sits ________ his desk for hours, reading his newspaper．
He is always strict ________ his students and ________ his work．
He left in a hurry ________ saying good-bye to us．
He worked hard ________ the maths problem，but he still couldn’t work it ________．
请用介词或副词填空
He spent the night ________ the villagers and had a wonderful time．
