Two thirds of the subway construction________so far and people will enjoy a fast and convenient trip under the city early next year.[ ]

If the food tastes nice, we will buy some; if ________, ________.

The Browns love their son so much that they always want to stop him from into ftrouble.

Only when the war was over ________ return to their hometowns.

The light above the elevator________ that the elevator was then at the fifteenth floor.