We _______ pay to get into the concert. It’s free.

is a society for bright people, and it aims to create a platform ______ many think can provide the chance to share their thoughts and ideas.

He________to me about the food, saying it was the worst food he had ever had. [ ]

－ ________does Mary usually go to the M usic Club －Once a week.

Carbon dioxide(CO2)_______ from burning fuels isthe most common of the so-called greenhouse gases.