---David has made great progress recently.--- _____, and _____.
In aerospace devices the weight of the necessary power producing equipment is _____.
There was a good _____ of the countryside from the front of the bus.
And you find that you're not to be _____ with a position of real responsibility.
They decided to leave the waiter a big _____ because the food and service had been excellent.
The patients believe that the doctor knows exactly how to put them _____.