例句：

　　1.We were watching TV from seven to nine last night. 昨天晚上七點(diǎn)到九點(diǎn)的時(shí)候我們在看電視。

　　2.What was he researching all day last Sunday? 上周日他一整天都在研究什么？

　　3.My brother fell while he was riding his bicycle and hurt himself. 我哥哥騎自行車的時(shí)候從車上摔下來，受傷了。

　　4.It was raining when they left the station. 他們離開車站的時(shí)候天正在下雨。

　　5.When I got to the top of the mountain, the sun was shining. 當(dāng)我到達(dá)山頂?shù)臅r(shí)候，陽光燦爛。