What a pity. If I had caught that flight, I ____ over the Pacific Ocean now.

ws shocked the public, to great concem aboutstudents’ safety at school.

Don’t refer to the dictionary every time you come across a new word as sometimes its meaning may be _______ clearly in a given context.

For teenagers,there are always too many rules that are expected________.[ ]

He made a mistake, but he took action to change the situation________ it got worse.