Conservation is the safeguarding and preservation of nature resourc es.

Robots in the home might not be enough creative to do the cooking, plan the meal and so on.

Please tell us the reason when he left without saying goodbye.

For the first time in the history of the country, the person which was recommended by the president to replace a retiring justice on the Supreme Court is a woman.

When many of my friends take a shower in the morning, I usually take one before bed.

Unless there had been a heavy storm, the climbers will not have died.

The mother asked her son if he would have the floor clean the day before.

Working provide people with personal satisfaction as well as money.