Lily called me ___ Friday morning and told me she was having a birthday party ___ me tomorrow. [ ]

We will celebrate the 90th birthday of the Chinese Communist Party ______ July 1st, 2011. [ ]

Could you please tell me __________? — Sorry, you can turn to Mr. Li.for help.

The year 2007 ______ remarkable changes in Changzhou’s landscape.

Could you help me_______ when the plane will take off on the Internet ?—— I’m sorry , my computer doesn’t work.