—Didn’t you have a good time at the party ? ----Of course I did .As a matter of fact ,I had such fun that time seemed to ________so quickly .
The air ______ different gases _____ together.
Our school was moved to Gaoxin District in 2005, and the new campus is ________ the old one.
The _____ as one travels by boat along the Changjiang Three Gorges is fantastic.
I _____ all the cooking for my family, but recently I’ve been too busy to do it.
--- How many concerts ____ up to now? --- About 25. Last night we ____ our biggest one.