Bыберите верный предлог. Let39;s meet ... 6 o39;clock. a) in, b)

Lets meet ... 6 oclock. a) in, b) on, c) at. Lets meet at 6 oclock.  

My brother works ... school. a) to, b) at, c) in. My brother works at school.

Go ... the room and have dinner. a) out of, b) into, c) from. Go into the room and have dinner.

Ill come ... train tomorrow. a) with; b) by; c) on. Ill come by train tomorrow.

I am good... History. a) at; b) in; c) by. I am good at History.