---I wonder what makes you a good salesperson---I _______ as a waiter for three years , which contributes a lot to my today’s work.A. serve B. have servedC had served D. served
He looked quite healthy ____ he was ____ the age of seventy.
Does John know any other foreign languages ____ French?
The old man died ____ cold ____ a cold night.
The trees ____ front of the house are ____ the charge of Old Li.
I made the coat ____ my own hands. It was made ____ hand, not with a machine.