Parents complain their children are behaving unreasonably _____children consider their parents to be old-fashioned.
The USA and some other countries helped the rebels in Libya ____________ their promise to support democracy (民主) and fair trade.
According to the statistics,young drivers are more ________to have accidents than older drivers.
Would you please keep silent? The weather report ________ and I want to listen to it.
In the past few years, so many areas throughout the world have been hit by such destructive earthquakes, snowstorms and tsunamis ________ we have never experienced before, ________ makes us worried a lot about nature disasters.
I don’t think it is __________taking the trouble to explain the question to him.