---- I want to give this watch to David. ---- What ? Don’t you know it _________ Henry ?
My sister, an inexperienced rider, was found sitting on the bicycle __________ to balance it.
We came home after our holiday only __________ our pet dog injured.
Start out right away,__________ you'll miss the first train.
Not only __________ polluted but crowded.
My parents have __________ us $ 15,000 for the house. Shall we take it?