Hi,
Can I say,
(a) John wrote his name in capitals.
(b) The house is surrounded by brick.
The house is made of brick.
(c) She knocked on the door before entering the headmaster's room.
(d) The twins are alike.
(e) John is a winner in / the winner of the drawing contest.
(f) She throws the rubbish in the garbage.
(g) She opened the gate to let the dog come in.
(h) He rears chickens and ducks on his farm.
Clive