--When did the World Exposition(世博会) in Shanghai begin? --The Expo began ________ May 1, 2010.
----______ does ______ take to play tennis? ----Let me see. About two hours.
Lisa often __________ to go to Xihui Park.
Look! There __________ some bread on the bowl.
I have a lot of homework to do today, _________ I cannot go swimming with you.
----What about ____________ this afternoon? ----Sounds great. Let’s go __________ and buy some water first.