If you can speak English well， you will have a great ____over others while looking for a job.

If I a boss, I would manage a big factory.

Last summer, many events in the world were covered_____on HD(高清) channels.

What’s this A pen—– ______, a pencil.

Is _______ ready for the picnic—No, _______ is wrong with my bike. I can’t go bike riding with you.