(a)   my brother will visit tomorrow.

That car is so slow. I need to (a)   it.

I want to (a)   the country to learn more about it.

The use of (a)   requires computers in the school.

There's a (a)   noise coming from that room. I've never heard it before.

Airplanes have a faster (a)   than cars.

The boy got (a)   in the head by the ball.