Our waste recycling project ________ a lot of investigation and paperwork had been done by the end of last term.
Not until the early years of the 19th century____ what heat is.
The last time we had great fun was _____we were visiting the Water Park.
It was along the Mississippi River ____Mark Twain spent much of his childhood.
_____ their hats into the air, the fans of the winning team let out loud shouts of victory.
No decision____ about any future appointment until all the candidates have been interviewed.