– Have you ever _______ my stamps?– Yes, I ______ them on your desk yesterday.A. saw; saw B. seen; saw C. seen; seen
______interesting the work is !
—_________ a week does Tom go to the club ? — Once a week.
I met Jim yesterday, we _______ each other since _______ from the university.
—He’s seldom asked to speak at the meeting, _______he_? —________, many times.
Look, There’s __________ sheep on the hill and there are _______ children, too.