Put questions to the subjects of these sentences.
1) Both John and Helen wear glasses.
2) My parents often go to the theatre.
3) My optimism helps me to live.
4) His friend knows the way out.
5) Traffic jams are typical of big cities.
6) Nick is my close friend.
7) Pete's sister likes oranges.
8) ''B'' comes after ''A''.
9) This car uses a lot of petrol.
10) Japanese cartoons date back all the way to the 1950