When did the plane _______ — Half an hour ago.

I __________computer games at home when my cousin_____________me.

－Your dress is very nice at the birthday party! －______.

There goes the bell. Hurry up, _______ you’ll be late for class.

It is said that bad living habits as well as dirty surroundings, stuffy rooms and some other factors _____ the wide spread of H1N1.[ ]