carelessly, the boy made mistakeshere andthere

Have you ever listened to the song called Gangnam (江南)Style __________is very popular these days–Of course. The dance is so funny.

He insisted _____ with her.

This is my good friend, ____ name is David. –Nice to meet you.

I sent for a technician ___ John isn’t familiar _____ the computer software they use?[ ]