Simon improved his way of study.______ , he has made great progress.

On Sunday when I was a little boy, father and I____ get up early and go fishing

It is hoped that an end can _______ to pollution ofany kind and we humans can live ______ with nature.

_____ guests we have, we wouldneed ___ food

As we all know, _________ car is becoming _________ popular way of transportation in big cities.