.—When did you ______English?—When I was in college.

His mother had talked to him for many minutes while he was watching TV,but ＿＿＿＿.

The speech by the mayor of Shanghai before the final EXPO 2010 is strongly impressed ____ my memory

I went along thinking of nothing________, only looking at things around me.[ ]

When speaking in public, it is important to _____ your message _____ and keep the attention of your audience.