听力原文：According to some research, there is still relatively little job mobility in Amer

听力原文：（A) Some people are sitting next to the fountain.（B) Some people are waiting for

听力原文：W: Do you want anything else？M: Yes, t still want some salad, some bread and some

听力原文： In a police station, an officer managed to get some fresh mushrooms. He was so h

听力原文：（A) Some cars are parked next to the curbs.（B) A man is riding a motorcycle in th

听力原文：（A) Some boats are sitting in the water.（B) Some people are fishing.（C) The boats

听力原文：（A) The presenter is entering the room.（B) Some booklets have been passed out to