How was your recent trip to Sichuan?—I’ve never had_______ one before.

I saw Mr Li into the school library just now.

The reporters asked the manquestions, but he saidwords.

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.

Don’t forget ________ your homework with you when you come to school.