—You look so young. Haven’t you graduated from your university?—Yes, I________in the English Department of Shandong University for four years.
________ children whose parents had died in the earthquake ________ sent to other families.
________ by his look, he doesn't think much of our plan.
After graduation, she wanted to ________ her own business.
Tom took the police to the spot ________ the accident happened.
National Day ________ people singing and dancing happily in the street.