---- David, look at the man in white over there.Can you tell me _______ ? ----He is a doctor.
This is a photo ______my family.
There is ______ art room in my school.
—_____! I’m Susan. —Good morning! I’m Sandy.
“I’m ______ before you . Then you can have my seat.” With these words , he stood up.
When do you think the conversation _____________?