Playing QQ’s “Happy Farm” by planting, watering, fertilizing, spraying, harvesting and selling virtual vegetables, fruits and flowers, we can find out _____ all the excitement is about.
I wish I ___ able to tell him all about it last night.
The students ages ____ 15 to 18.
Only when your identity has been checked ____________.
The speech by the mayor of Shanghai before the final voting for EXPO 2010 is strongly impressed ___ my memory.
Having never met with such a _____ problem, he felt _____ and didn’t know how to solve it.