Do you know the answer _____ the hard question?[ ]

What would you like to do in the future?—I’d love to sail________the Pacific some day. [ ]

There are lots of restaurants in our town. And most of _____ are clean and cheap.

____ has been heated discussion over which country bakes the world’ s best pizza: Italy, where pizza began or the US, where it was globalized.

The number of the students in our grade _______about six ______, ______ of them are girls.