—Is there anything wrong, Bob? You look sad.—Oh, nothing much. In fact, I __________ of my friends back home.
When and where to go for the on-salary holiday _____ yet.
The water will be polluted unless some measures _____.
His way of speaking suggested that he ____ very angry.
Pine trees, of which there are almost one hundred ____, are found throughout the North Temperate Zone.
The salmon dish was _______, wasn’t it?