The girl in red ____my sister.

The Arabian Nights _____ well known all over the world, in which many a story_____ interesting and instructive．

According to the recent regulation, it is required that any chemical plant that_______ along the river _______ to build a recycling center for the waste.

Between the two windows      a  picture.

My trousers       being washed.What’s worse，this pair of trousers bought yesterday       too short for me.