1 . Your light will come on the i________ you cater the door along with your favorite music or TV programmes, and you will find your dinner already prepared for you. (根据首字母单词拼写)

2 . I bought three reference books yesterday, two of ________ were about Roman history.（用适当的词填空）

3 . Your lights will come on the ________ (瞬间) you enter the door along with your favourite music or TV programmes. （根据汉语提示单词拼写）

4 . Zhong Nanshan, who is a______________ (确认, 承认) as China's leading epidemiologist wins Edinburgh honor. (根据汉语意思填空)