The ordinary girl sat silently at the corner , but when the prince came over to invite her to dance , her face immediately ____________.
China is one of the developing countries ________ the third world.
—How long ________ at this job?—Since 1990.
According to today’s newspaper, the escaped prisoner threatened to _____ the police station in the near future.
Mary heard ____strange sound at ____midnight outside her house and got scared.
He opened the door. There ________ he had never seen before.