If it ________ for the heavy rain then, we would have arrived here ahead of time.
Having finished the work,__________.
It was with great joy _______ Tom received the news that his lost son had been found.
So sudden ______ that the enemy had no time to escape.
Look out!Don’t get too close to the house ________ roof is under repair.
I have an appointment _______ Dr.Brown,but I need to change it.