根据句意和汉语注释,写出单词的正确形式。 小题1:As we know, oil always __________ (漂浮) on water. 小题2:He __________ (点头) to me in greeting when I entered the room. 小题3:We are very __________ (自豪) that a pupil from our school has won the prize. 小题4:They all hurried __________ (往楼上) to see what was going on. 小题5:There was __________ (沉默) for a moment and then someone made a useful suggestion. |