as a strict but good captain, __________ usually took care of the sailors on his ship.

He sold me the car at a cheap price and included the radio ______.

The 3G cellphone must be of great use and convenience to wants to get the information through the Internet quickly.

－English istoo hard for me to study well. I don’t want to learn it any more.－Don’t .It is useful in the future.

The conference aims to develop business and let people think about _______ they can have a positive influence on the planet.