There have been no occasions ____ he has come late for school

When did the World Exposition(世博会) in Shanghai begin–The Expo began ________ May 1, 2010.

You’ve got a stomachache But we ate at the sameplace How come my stomach is fine——You have an iron stomach! Mine isn’t ___ strong

Why didn’t you come to the cinema with us last Saturday? —Oh，sorry．But Ithe film

I enjoy adventure films, but ________ my father ________ my mother likes it.