Petroleum(石油), along with fuel gas, ________ in price. Thus a larger amount of money __________ spent on transportation.

Feeling _________ after so many years’ sacrifice in the company, he decided to retire and _________ the business _________ to his son.

You’re quite free now, I think.— ________, I have tons of things to do! [ ]

You should apologize to her, Barry.— _____, but it’s not going to be easy.

What’s matter— I have stomachache.