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

So you missed the lecture given by the famousprofessor—____________ I got there 10 minutes before itfinished

I have to go home. My parents do not allow me to ___________ too late.

Little did he care about his own safety,_______he was in danger himself

The room wants ___.