_________ the math problem is difficult, I’ll try hard to work it out.A. When B. Though C. Before
----Did you have a sports meeting yesterday? ---- No, we didn’t. It was put off ________ the heavy rain.
When summer comes, a lot of people feel like _____ to have fun.
----What did you do yesterday evening, Gina? ---- I _____ Titanic 3D in the City Cinema.
----When _____ Mr. Green _____ to the town? ---- Last December.
In our school, _____ students like English, but _____of them can speak smoothly(流利地).