It’s only seven p.m. I wonder _____________.-Maybe she had something important to do.

s asked a lot of questions, but she didn’t answer ofthem.

The microphone enabled them to keep in touch, in other words, it made it _____ for them to contact each other.

After the terrorist attack last month, anyone at the airport heavy bags, bottles of liquid, or whatever, could be stopped and questioned by the police

_____, most teenagers now listen to rock musicHowever, John likes classical music better[ ]