He ran as fast as he could _____ to catch the early bus.
________ is often the case, we have worked out the production plan.
The____________house smells as if it hasn't been lived in for years.
The old man, ____________abroad for twenty years, is on the way back to his motherland.
A man is being questioned in relation to the ________ murder last night.
It's ten years since the scientist _______on his life's work of discovering the valuable chemical.