Excuse me, but I don’t think you can take photos here.— Sorry. I _______ this is no-photo zone.（地区）

It is playing computer games _______ the boy spends most of his spare time.

I ______ go to bed______ my mother came back home.

How long have you been there? —_______.[ ]

______ of the workers in the computer factory is about two thousand, and ______ of them are women workers.